Athletics placed RHP Justin Sterner on the 15-day injured list with right knee chondromalacia.
Sterner was shellacked for six runs over just 1/3 of an inning against the Nationals on Friday, and apparently wasn’t close to 100 percent. He’ll be out at least two weeks, but knee injuries often will have longer stints on the injured list. Geoff Hartlieb is up to take Sterner’s place on the active roster.