The Oakland Athletics placed right-hander Paul Blackburn on the 15-day injured list Monday with a right foot injury and recalled left-hander Easton Lucas from Triple-A Las Vegas.

Blackburn, 30, was diagnosed with a stress reaction in his fifth metatarsal. His IL move is retroactive to Saturday.

The 2022 All-Star was 3-2 with a 4.11 ERA in eight starts this season. In eight seasons for the A's, he is 20-26 with a 4.80 ERA in 80 appearances (76 starts).

Lucas gave up three runs over 2 1/3 innings during two previous outings with the A's this season. In eight relief appearances with Oakland over the past two seasons, the 27-year-old has a 9.00 ERA in nine innings.