The Detroit Tigers activated right-hander Reese Olson from the injured list to start Friday’s game against the Cleveland Guardians.
The Tigers opened a roster spot late Thursday when outfielder Justyn-Henry Malloy was optioned to Triple-A Toledo.
Olson, 25, was 4-3 with a 2.96 ERA in nine starts before he went on the IL with inflammation in his right ring finger. In three seasons with Detroit, he is 13-18 with a 3.60 ERA in 52 appearances (49 starts).
Malloy, 25, was batting .208 with one home run and 16 RBIs in 46 games this season. In two seasons, he is batting .205 with nine home runs and 37 RBIs in 117 games since making his major league debut in 2024.