Vosler was recalled from Triple-A Sacramento and is starting at third base and batting eighth Friday against the Cubs.
He is slashing .222/.300/.426 with 12 home runs and two steals in 57 games at Triple-A, but Vosler has hit .268 with four home runs in a brief 19-game sample in the majors this year. With Evan Longoria (hamstring) back on the IL, there should be some playing time available for Vosler in the short term.