Inside The Mariners

Seattle Mariners Reliever Matt Brash Has First Blemish in Rehab Assignment

Brash wasn't able to keep his streak of immaculate outings in his latest appearance with the Triple-A Tacoma Rainiers.
Seattle Mariners reliever Matt Brash celebrates during a playoff game against the Houston Astros on Oct. 15, 2022, at T-Mobile Park.
Seattle Mariners reliever Matt Brash celebrates during a playoff game against the Houston Astros on Oct. 15, 2022, at T-Mobile Park. | Steven Bisig-Imagn Images

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The Seattle Mariners bullpen has been one of the most heavily-used units in baseball.

Entering Monday, the Mariners relievers pitched 90 innings. That number is second in the league behind the Los Angeles Dodgers (96.2) and first in the American League.

And the Mariners will get a big boost to the bullpen soon when Matt Brash returns.

Brash missed all of 2024 and was placed on the 15-day injured list to begin the season due to recovery from Tommy John surgery.

Brash led Seattle in appearances in 2023 with 78. He had a 3.06 ERA with 107 strikeouts in 70.2 innings pitched.

Brash has been on a rehab assignment with the Triple-A Tacoma Rainiers since April 13. He made his third rehab appearance on Sunday.

In an 8-4 loss against the Oklahoma City Comets, Brash pitched 0.2 innings. He walked one batter, struck out one and allowed two earned runs on one hit. It was the first earned run and free base that Brash has let up in his rehab assignment. His ERA went from 0.00 to 6.75.

Brash had two rehab outings before his appearance Sunday. He pitched two total innings, struck out two and allowed two hits. Brash's two earned runs allowed have an asterisk. He was pulled with two runners on base after hitting his pitch limit. Will Klein inherited the runners and gave up the a hit. Brash was dinged for the two runs.

Brash has been ahead of schedule in his rehabilitation from Tommy John surgery. The initial timeline after the surgery had Brash to return around the All-Star break. In spring training, Brash had gotten his velocity back up to his average from 2023 (98.1 mph). He had the full spin rate and movement back on his secondary pitches. He threw in the Mariners' Cactus League finale against the San Diego Padres on March 24.

Brash's relief outing Sunday wasn't as clean as his two previous ones, but he seems closer to making his return from injury.

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