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If you had the Rays as the first-place team in the American League East in the final days of June, you deserve some congratulations, and maybe some company. It was probably a lonely feeling calling out the Rays as a playoff contender three months ago. If someone could have told you that Evan Longoria was far from having a bounceback season, James Loney was hurt, and Asdrubal Cabrera and Rene Rivera were among the majors' least productive hitters, no one would have blamed you for changing your prediction.

Logan Forsythe has picked up much of the slack for an offense that is in the middle of the pack in Isolated Power and weighted on-base average (wOBA), and his exploits have been discussed several times already in this space. Among players with at least 150 plate appearances, the Rays' wOBA leader is actually Joey Butler, and it's by a wide margin (.390 to .363 over Forsythe).

So how is Butler doing it? The 29-year-old journeyman outfielder is showing surprising power for someone with a long history of being a ground ball hitter, as he has clouted six home runs and 10 doubles in 154 at-bats. However, it's Butler's .338 batting average that is doing the heavy lifting for his Fantasy value. He is striking in 27 percent of his at-bats, but Butler is making up for it with a 26 percent line drive rate and a .309 batting average on ground balls. He also has yet to pop out, so Butler is doing a good job of squaring up the ball, and given that he is fairly good at hitting to the opposite field, he may be able to sustain his .300-plus batting average on grounders. Even so, a .280 overall batting average is probably a more realistic rest-of-season expectation.

Butler is already owned in 47 percent of the leagues on CBSSports.com, which suggests there are some owners in deeper mixed leagues that could still use him. He provides enough of a combination of batting average and power that he is also viable in standard mixed Rotisserie leagues. Though it may surprise some that Butler has made it onto rosters in close to half of our leagues, he is actually still under-owned.

He's not the most underowned outfielder, though. Today's waiver recommendations include a strong contender for that title, as well two other up-and-comers.

Randal Grichuk, OF, Cardinals (32 percent owned)

With a 32 percent ownership rate, Grichuk has launched himself near the top of the Most Added list on CBSSports.com, having climbed from an 11 percent ownership rate in the past week. Cardinals manager Mike Matheny has done his part by giving Grichuk regular playing time -- a move that preceded the loss of Matt Holliday to the disabled list -- and now it's the job of Fantasy owners to keep adding him.

Randal may be missing an "L" in his first name, but he is not missing many opportunities to hit for extra bases. As has been his wont, Grichuk is hitting flyballs at a healthy rate (0.90 GB/FB ratio, per FanGraphs) and showing extreme pull tendencies. That has resulted in six home runs, 10 doubles and four triples in 126 at-bats, which adds up to a .286 Isolated Power -- the 10th-highest among hitters with at least 100 plate appearances. Because he strikes out frequently and is vulnerable to shifts, it seems unlikely that Grichuk can maintain anything close to a .278 batting average. Still, he's a must-own in any mixed league deeper than 12 teams.

Mike Montgomery, SP, Mariners (27 percent owned)

Montgomery has carried over his minor league breakout to the majors, and he punctuated the impressive start to his big league career with a complete-game shutout against the Royals on Tuesday night. That was Montgomery's fourth quality start in five tries, and he has yet to last fewer than six innings in any start. He may have been more than a little lucky in his first four outings, allowing a .247 BABIP, which was particularly helpful given his 4.1 K/9 ratio. To get the contact-hitting Royals to swing and miss 13 times, contributing to 10 strikeouts...now, that was impressive.

Montgomery's history suggests that he should be a better strikeout pitcher than he was prior to his Royals start, and with improved control and a favorable home venue in Safeco Field, Montgomery deserves consideration in far more than the 27 percent of leagues in which he is currently owned. He will need a few more high-K outings to prove he belongs in standard mixed leagues, but in any format deeper than that, it's time to put a claim in on him.

Josh Phegley, C, Athletics (3 percent owned)

While Ike Davis was out with a quad injury, Stephen Vogt started to see more playing time at first base, and that created an opportunity for Phegley to catch more often. The former White Sox prospect made the most of it, batting .342 with two home runs and five doubles over a 13-game stretch. That may have earned Phegley a greater share of playing time going forward, as he has started two of the four games since Davis was activated from the DL. In those games, Phegley went 3 for 7 with a home run and two doubles.

In his last two season in the minors, Phegley hit a combined 38 home runs over 168 games, and so far this season, he has cut back his strikeouts below the rates he put up in those minor league seasons. Phegley seems likely to regress in his batting average, but if he continues to split starts behind the plate with Vogt, his power alone makes him worth considering in most two-catcher leagues.