Joshua Simpson: Everything you need to know

The Mariners optioned Simpson to Triple-A Tacoma on Saturday, Daniel Kramer of MLB.com reports. The Mariners recalled Simpson from Triple-A on Friday, but he'll now be sent back to the minors a day later without appearing in a game for Seattle. Nick Davila was selected from Double-A Arkansas in a corresponding move.

The Mariners recalled Simpson from Triple-A Tacoma on Friday. With Matt Brash (lat) landing on the injured list Friday, the Mariners will call upon Simpson to fill the void in their bullpen. The 28-year-old southpaw struggled mightily in the big leagues last year, finishing with a 7.34 ERA and 1.83 WHIP across 30.2 innings with the Marlins. However, he's bounced back nicely with the Rainiers this season, allowing just one earned run on three hits and six walks while striking out 12 batters over 9.1 frames.

The Mariners optioned Simpson to Triple-A Tacoma on Friday. Simpson was acquired by the Mariners from the Marlins in mid-February. The 28-year-old southpaw made his major-league debut for Miami in 2025 and appeared in 31 games, posting a 7.34 ERA, 1.83 WHIP and 36:22 K:BB across 30.2 innings. Simpson will open the 2026 season in Triple-A but could get called up to the majors if the Mariners need a left-hander out of the bullpen.