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33 Justus Sheffield SP

Seattle Mariners

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March 1, 2021 01:44 PM
Mariners' Justus Sheffield: Set for spring debut
by RotoWire Staff | RotoWire

Sheffield, the Mariners' projected No. 4 starter, will make his first Cactus League appearance Thursday versus the Rockies, Daniel Kramer of reports.

The young left-hander will look to build on a highly encouraging 2020 campaign this coming season, with Sheffield having shown considerable improvement from his seven-start cameo in 2019 by posting a 4-3 record and 3.58 ERA across 10 starts. Sheffield focused much more on honing his location last season, resulting in a drop in BB/9 from 4.5 in 2019 to 3.2, as well as a significant reduction in ERA from the 5.50 figure he generated in his first exposure to big-league bats.

September 27, 2020 09:56 AM
Mariners' Justus Sheffield: No-decision in final start
by RotoWire Staff | RotoWire

Sheffield allowed one run on five hits and two walks over five innings during Game 1 of Saturday's doubleheader against the Athletics. He struck out one and didn't factor in the decision.

The left-hander wasn't at his best as he generated only one swinging strike in 82 pitches and set a season low for strikeouts, but he battled to put together a solid performance in his last start of the season. Sheffield performed well in 2020 with a 3.58 ERA, 1.30 WHIP and 48:20 K:BB across 55.1 innings and should enter next season with a secure spot in Seattle's rotation.

September 20, 2020 12:40 AM
Mariners' Justus Sheffield: Wins consecutive starts
by RotoWire Staff | RotoWire

Sheffield (4-3) allowed a run on six hits and a pair of walks while striking out five in six innings to earn the win Saturday versus the Padres.

The only run against Sheffield came in the third inning on a Manny Machado RBI single. Other than that, the 24-year-old Sheffield was effective at quieting the Padres' big bats. He lowered his ERA to 3.75 with a 1.29 WHIP and 47:18 K:BB across 50.1 innings this year. The lefty is expected to get one more start in the regular season during next Saturday's doubleheader versus the Athletics.

September 13, 2020 03:04 AM
Mariners' Justus Sheffield: Picks up third win
by RotoWire Staff | RotoWire

Sheffield (3-3) earned the win over Arizona on Saturday, tossing seven innings and allowing two runs on five hits and three walks while striking out seven.

Sheffield was staked to a five-run lead early in the contest and cruised to a relatively easy win, allowing only a pair of fourth-inning runs. He tossed 96 pitches (66 strikes) and did not allow an extra-base hit en route to his fifth quality start in his last six outings. The southpaw has bounced back from a rough beginning to the campaign to post a respectable 4.06 ERA and 1.29 WHIP on the season. He'll face a tough San Diego offense at home Friday in his next scheduled start.

September 6, 2020 01:44 AM
Mariners' Justus Sheffield: Solid in no-decision
by RotoWire Staff | RotoWire

Sheffield tossed seven innings against Texas on Saturday, allowing two runs on eight hits and a walk while striking out six. He did not factor in the decision.

Though he was unable to land in the win column, Sheffield's outing was a nice bounceback performance after he allowed six earned runs in his previous start. He was in line for a victory until his final frame, when he yielded a solo home run to Anderson Tejeda. The right-hander picked up his fourth quality start -- all of which have come in his last five appearances -- and now holds a 4.34 ERA on the season. He'll face the Diamondbacks on the road next Saturday.

August 31, 2020 01:16 AM
Mariners' Justus Sheffield: Pummeled by Angels
by RotoWire Staff | RotoWire

Sheffield dropped to 2-3 in Saturday's 16-3 loss to the Angels after serving up six runs on four hits and four walks while striking out six in 4.2 innings.

Sheffield hadn't allowed a home run in his first five starts of 2020, but he finally got bit by the long ball Saturday, as Angels prospect Jo Adell took him deep for his first career home run in the second inning. The lefty wasn't able to rebound thereafter, with shaky control -- he threw only 55 of his 98 pitches for strikes -- being his biggest issue. He's now 0-2 with an 11.74 ERA in his two starts against the Angels, compared to 2-1 with a 2.38 ERA in his four outings in between.

August 23, 2020 06:08 AM
Mariners' Justus Sheffield: Effective in second win
by RotoWire Staff | RotoWire

Sheffield (2-2) earned the win against Texas on Saturday, pitching six innings and allowing one run on six hits and one walk while striking out five.

Sheffield was staked to a first-inning three-run lead that he had no problem protecting, allowing only one run on the way to his third straight quality start. The southpaw has allowed only two earned runs over 18 innings in that span to lower his ERA to 3.51 on the season. A key factor in his success has been his refusal to give up the long ball -- he has yet to allow a home run in 25.2 innings in 2020. Sheffield will look to continue his strong run when he faces the Angels on the road Saturday.

August 17, 2020 02:36 AM
Mariners' Justus Sheffield: Strong outing against Astros
by RotoWire Staff | RotoWire

Sheffield allowed two runs (one earned) on six hits and one walk across six innings in Sunday's 3-2 loss to Houston. He struck out four and did not factor in the decision.

Sheffield put together six solid frames for a second consecutive outing. The lone earned run allowed by the lefty came on an RBI single by Martin Maldonado in the fourth inning. After a shaky pair of starts to begin the campaign, Sheffield has lowered his ERA to a respectable 4.12 on the season. His next start is scheduled to come Saturday against the Rangers.

August 9, 2020 09:44 PM
Mariners' Justus Sheffield: Fires six shutout innings
by RotoWire Staff | RotoWire

Sheffield (1-2) allowed four hits across six shutout innings Sunday, striking out seven and earning the win over the Rockies on Sunday.

After allowing four runs in each of his first two starts this season, Sheffield fired a gem Sunday. The only time he was in any danger was the fourth inning; with runners on the corners, Sheffield retired Elias Diaz and Ryan McMahon to escape the jam. He'll carry a 5.27 ERA into Saturday's road contest against the Astros.

August 5, 2020 03:32 PM
Mariners' Justus Sheffield: Takes loss Monday
by RotoWire Staff | RotoWire

Sheffield (0-2) was tagged with the loss in Monday's 11-1 defeat against the Athletics. He gave up four runs on four hits and two walks while fanning five in 4.2 innings.

Sheffield had already allowed four runs on four hits in his season debut against the Angels on July 28, although he went a bit deeper into the game this time. He owns a 7:6 K:BB in 7.2 innings so far and will try to deliver a better performance in his next scheduled start at home against the Rockies on Aug. 9.

July 29, 2020 03:12 PM
Mariners' Justus Sheffield: Struggles in 2020 debut
by RotoWire Staff | RotoWire

Sheffield (0-1) allowed four runs on three hits and four walks while striking out two over three innings in a loss to the Angels on Tuesday.

The Angels drove up Sheffield's pitch count, forced him from the game early, and then piled on for six additional runs against the Seattle bullpen. Sheffield has a very good slider, but he's still working to refine his command and control and develop his third pitch (the changeup). Hopefully this will be a growth year for the lefty. Risk-averse fantasy players will probably want to watch and see from afar.

July 24, 2020 01:32 PM
Mariners' Justus Sheffield: Dominates in last intrasquad start
by RotoWire Staff | RotoWire

Sheffield tuned up for the regular season by compiling eight strikeouts over four perfect innings in an intrasquad game Wednesday, Greg Johns of reports.

Set to face the Angels on Tuesday in his regular-season debut, Sheffield maximized his opportunities against a lineup mostly comprised of prospects and projected backups. Shannon Drayer of 710 ESPN Seattle notes Sheffield utilized the outing to do some in-game experimenting, with the left-hander stating after the game he deployed some changeups in same-handed matchups and successfully elicited some swings and misses with it. Meanwhile, manager Scott Servais took the most satisfaction from seeing the young southpaw continue to demonstrate solid control. "He was ahead in the count -- that's probably the most exciting thing," Servais said. "Tonight, Sheff 0-2 and 1-2 in 75% of the hitters he faced. That's what it's going to take, trusting your stuff and just pounding the strike zone."

July 18, 2020 09:28 AM
Mariners' Justus Sheffield: Continues tuning up
by RotoWire Staff | RotoWire

Sheffield continued working on his two-seam fastball during Thursday's intrasquad game, during which he allowed one run on three hits and recorded four strikeouts over three innings, Shannon Drayer of 710 ESPN Seattle reports. "I was looking to run my two-seam into the righties and front-hip them," Sheffield said. "I was able to do that, I was happy to see I could put some guys away with that, which was a big focus after last week. I really needed to get in there and finish some hitters and I felt I did that."

Sheffield has traditionally deployed a four-seam fastball, but shortly before spring training was suspended, he began working on developing a two-seamer that he believes is a better fit for his low spin rate. The projected No. 4 starter has enjoyed a productive summer camp, as he also threw a pair of scoreless innings in a prior intrasquad outing and reported that he felt his stamina was improved during Thursday's time on the hill.

July 11, 2020 10:24 AM
Mariners' Justus Sheffield: Impressive in intrasquad outing
by RotoWire Staff | RotoWire

Sheffield drew the start for one of the two teams in Friday's intrasquad game and threw two scoreless innings, Greg Johns of reports.

The 24-year-old had already raised expectations with a strong Cactus League stint that included a 2.25 ERA and just one walk over eight innings. Friday's performance seems to indicate that Sheffield, who's projected to open the season as the No. 4 starter, has carried that momentum over into summer camp, even as he was besieged by pregame nerves. "I was pretty pumped up and had the nerves flowing," Sheffield said. "It was definitely weird at first, but once I got between the lines, everything settled in and it was baseball. I feel like once we keep going, it'll get more normal."

April 16, 2020 01:36 AM
Mariners' Justus Sheffield: Impresses with efficient spring
by RotoWire Staff | RotoWire

Sheffield was one of the team's best pitchers before spring training was suspended, Brandon Gustafson of 710 ESPN Seattle reports.

The promising southpaw was lauded by general manager Jerry Dipoto for the increased confidence he came into camp with, one which helped lead Sheffield to an impressive 2.25 ERA across eight innings over three Cactus League appearances. Just as important, Sheffield walked just one batter during that modest sample, which Gustafson notes is encouraging considering control issues frequently derailed the 23-year-old at multiple stops during his minor-league career. Sheffield projects as Seattle's No. 4 starter to open the 2020 season and continues to do some throwing off a mound during the current suspension of play.

March 10, 2020 01:00 PM
Mariners' Justus Sheffield: Breaks out two-seamer
by RotoWire Staff | RotoWire

Sheffield, who recorded five strikeouts across three innings in his third Cactus League start versus the Giants on Sunday, deployed a two-seam fastball with considerable success during the outing, Daniel Kramer of reports. "Honestly, from pitch one today, beginning in his bullpen, that was the best I ever caught from [Sheffield]," catcher Tom Murphy said. "He threw his two-seamer exclusively. That was something he wanted to do. He put it on himself. It was the most natural that I've seen his fastball move."

The use of the two-seamer was initially suggested by pitching coach Pete Woodworth at the start of spring training after he observed the lack of spin on Sheffield's four-seam fastball. According to Kramer, the average spin rate of Sheffield's four-seamer was 1,185 RPM, well below the MLB average of 2,287. While the two-seamer isn't anywhere near the strikeout pitch its four-seam counterpart is, it appears to be a much better fit for Sheffield's low-90s velocity, especially as a bridge to his impressive slider -- on which he recorded 29 of his 37 strikeouts last season -- and changeup. "Being able to do that against a righty makes the plate 20 inches wide as opposed to 17. ...Now that right-hander has to respect a larger portion of the inner half, and then that slider can play off even deeper," Murphy said.

March 3, 2020 07:20 PM
Mariners' Justus Sheffield: Keeps impressing in second start
by RotoWire Staff | RotoWire

Sheffield allowed an earned run on two hits across three innings in a Cactus League loss to the Rockies on Monday. He struck out four.

The 23-year-old southpaw had gotten his spring off to an encouraging start against the Brewers last Tuesday, firing a pair of perfect frames during which he'd recorded three strikeouts. Sheffield did suffer a blemish in the form of a Ryan McMahon first-inning solo home run Monday, but Ryan Divish of The Seattle Times reports Sheffield's fastball was consistently in the 92-93 mph range and both his slider and changeup also looked impressive. The promising lefty will look to keep building momentum ahead of the regular season in his next Cactus League start, which is likely to come this weekend.

February 26, 2020 11:16 PM
Mariners' Justus Sheffield: Perfect in spring debut
by RotoWire Staff | RotoWire

Sheffield fired two perfect innings during which he recorded three strikeouts in a Cactus League win over the Brewers on Tuesday.

The promising southpaw scuffled last season in his first taste of big-league action since joining the Mariners organization, generating a 5.50 ERA and 1.72 WHIP across eight appearances (seven starts). Sheffield's control (4.5 BB/9) was frequently an issue, so a pristine performance from the projected No. 4 starter was certainly a welcome sight for manager Scott Servais, Greg Johns of reports. "Really good stuff out of Sheff," Servais said. "A couple punchouts and a really good slider. Sheff has strikeout stuff, and we saw it today. Nice to get him off to a good start."

September 28, 2019 12:52 PM
Mariners' Justus Sheffield: Wraps up season with no-decision
by RotoWire Staff | RotoWire

Sheffield gave up one run on five hits and four walks while striking out two over five innings in a no-decision against the A's on Friday night.

One run over five looks good at a glance, but he was walking a fine line with the four free passes and a homer allowed. Sheffield was probably due for a run of better luck after he had some unfortunate breaks against him in his prior two starts (9.35 ERA, 2.76 FIP in those two outings). The lefty ends the 2019 season with a 5.50 ERA and 1.72 WHIP in 36 innings with the big club, and should get a chance to compete for a rotation spot in spring training.

September 22, 2019 07:36 PM
Mariners' Justus Sheffield: Unravels against Orioles
by RotoWire Staff | RotoWire

Sheffield allowed four earned runs on five hits and one walk while striking out five across 4.1 innings Saturday against the Orioles. He did not factor into the decision.

Sheffield gave up three runs in the second inning when he surrendered consecutive doubles that led to the majority of he damage. However, he was ultimately chased in the fifth inning when he gave up two hits and hit a batter to load the bases. It was a disappointing effort for Sheffield, and he's now allowed four or more earned runs in three of his last five starts, inflating his ERA to 5.81 and WHIP to 1.68 in 31 innings this season. His next and final outing of the campaign is currently projected to come Friday against Oakland.

Last 7 Games
09/26@ OAKW 5-15.05121
09/19vs SDW 4-116.06125
09/12@ ARIW 7-317.05237
09/05vs TEXW 5-37.08216
08/29@ LAAL 3-1614.24646
08/22vs TEXW 10-116.06115
08/16@ HOUL 2-36.06114
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2018AAX-Trenton Thunder 28.05501203914162.251.071
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Player Info

Tullahoma, TN
Seattle Mariners

MLB Experience: