The San Francisco Giants activated outfielder Mike Yastrzemski from the 10-day injured list Wednesday.
Yastrzemski started in right field against the visiting Cincinnati Reds, batting sixth in his first game since sustaining a left hamstring strain July 30. He went 0 for 2 with two walks in the Giants' 4-1 loss.
The 33-year-old Yastrzemski entered Wednesday batting .233 with 11 home runs and 32 RBIs in 77 games this season, his fifth with the Giants. He is a career .241 hitter with 84 home runs and 250 RBIs in 527 games.
San Francisco optioned outfielder Luis Matos to Triple-A Sacramento in a corresponding move. Matos, 21, made his major league debut June 14 and is batting .250 with two home runs and 11 RBIs in 59 games.
Information from Reuters was used in this report.