Giants activate OF Mac Williamson, send P Josh Osich to Triple-A

CHICAGO -- The San Francisco Giants have activated outfielder Mac Williamson from the 10-day disabled list and sent left-hander Josh Osich to Triple-A Sacramento.

Williamson started in left field against the Chicago Cubs on Friday after being sidelined since April 24 because of a concussion. He was hurt when he stumbled on a bullpen mound and crashed into the left-field wall chasing a fly ball during a home game.

Williamson was batting .316 batting with three home runs and six RBI in five games.

Osich has an 8.25 ERA in 12 relief appearances.