Rainey tossed two scoreless innings of relief in Monday's 4-1 loss to the Rays. He walked two and struck out two.
Since having his contract selected from Triple-A Toledo earlier this month, Rainey has pitched well for the Tigers. He's now strung together 6.2 scoreless innings across five appearances and has struck out six batters. Rainey doesn't have a ton of fantasy value at the moment in his middle-relief role, but he could be auditioning for higher-leverage work in 2027 if he continues to perform well down the stretch.