After posting a 4.76 ERA in his final season with the Cardinals, Wacha joined the Mets, and things didn't get any better. He had a 6.62 ERA in eight appearances. 2021 saw Wacha join the Rays and post a 5.05 ERA in 29 appearances, 23 of which were starts.
Prior to the lockout, the Red Sox took a flyer on the veteran right-hander. Though injuries limited him to just 23 starts, he really improved and was Boston's best starter in 2022.
Wacha won 11 games and posted a 3.32 ERA. This year, he has remained healthy for the most part, which makes him an ideal candidate to fill a rotation spot next year should the Cardinals target him.