The 28-year-old Yacabonis is new to the Seattle organization, which acquired him from San Diego for cash on Aug. 19. Yacabonis previously signed a minor league contract with the Padres last offseason, but he didn’t wind up seeing any major league action as a member of the club. He did, however, appear in the bigs with the Orioles in each season from 2017-19. During that 101 2/3-inning span, Yacabonis pitched to a 5.75 ERA/6.01 FIP with 6.6 K/9 and 5.0 BB/9.
Yacabonis will now join a Mariners bullpen that, as Greg Johns of MLB.com points out, may need some fresh arms at the moment. Their relief corps pitched most of Tuesday’s loss to the Giants after Ljay Newsome left with an injury following just 1 2/3 innings of work.