Rumbelow was recalled from Double-A Arkansas on Tuesday. The 27-year-old pitched 13.1 innings for the Mariners earlier in the season, recording a 6.75 ERA while allowing six homers. He'll be one of many low-leverage arms in the team's expanded September bullpen.
Rumbelow was optioned to Double-A Arkansas on Tuesday, Ryan Divish of The Seattle Times reports. Rumbelow made just one appearance during his most recent stint with the Mariners, allowing one run across three innings of relief against the Astros last week. He now owns an unremarkable 6.75 ERA across 13.1 big-league innings this season. The 26-year-old should be back in the majors when a fresh bullpen arm is needed.
Rumbelow was called up from Triple-A Tacoma on Wednesday. Rumbelow will shuttle back to the big-league level in order to give Seattle a fresh bullpen arm ahead of Wednesday's series finale versus the Astros. Across eight appearances this year, he's logged an unsightly 7.84 ERA and 1.65 WHIP in 10.1 innings of relief. He will be utilized in low-leverage spots while with the Mariners. In a corresponding move, Ross Detwiler was designated for assignment.
Rumbelow was optioned back to Triple-A Tacoma on Sunday. Rumbelow spent just two days in the majors without making an appearance before being relegated back to the minors. He struggled to the tune of a 7.84 ERA in the majors this season, but he has a strong 2.25 ERA and a 20:6 K:BB in 12 minor-league innings this year. His demotion makes room for Erasmo Ramirez to return from the disabled list and start Sunday's contest.
Rumbelow was called up from Triple-A Tacoma on Thursday, Ryan Divish of The Seattle Times reports. Rumbelow has spent the past month in the minors, posting a 3.00 ERA and 15 strikeouts in nine innings of relief since July 15. He will return to a low-leverage role in the Mariners' bullpen, where he's struggled to a 7.84 ERA and 1.65 WHIP across 10.1 innings this season.