Cubs Sign Reliever Aaron Bummer

[Brian Kelder]

According to USA Today columnist Bob Nightengale, the Cubs have signed veteran reliever Aaron Bummer to a minor-league contract.

Bummer was released from the Atlanta Braves in his third season there after struggling to a 7.63 ERA in 19 appearances. In 2025, he was much more successful, striking out almost a batter per inning with a 3.52 ERA. 

Bummer returns to Chicago, where he debuted back in 2017. For his career, his ERA is 3.44 with a 1.34 WHIP. His velocity has slipped in his age-32 season down to 90 mph from 93 just two seasons ago.

Fans shouldn’t expect much, but he could play a role in Chicago if he can limit hard contact and walks. He’ll look to recapture his career success in Iowa’s bullpen.

View full rumor

[Bertz]

The good and the bad about Bummer is his issue is clearly velocity.  On the one hand that's an issue that is generally tough to address in season.  But on the other if a month from now he's at Iowa sitting 93-94 you don't have to do a lot of hemming and hawing over whether he's worth a shot.

[jersey cubs fan]

bummer summer in wrigleyville