Plate umpire leaves A's-Giants game in 4th inning

SAN FRANCISCO (AP) Home plate umpire Adrian Johnson left the game between the Oakland Athletics and the San Francisco Giants in the fourth inning after being hit in the mask by a foul ball.

The game was delayed before the start of the fourth inning Thursday when crew chief Angel Hernandez had to put on his home plate gear. Hernandez had been at second base before Johnson left. Paul Nauert and Mark Ripperger shared the base duties for the rest of the game.

Johnson was hit in the mask by a foul ball in the first inning. He stayed in the game before leaving as a precaution before the start of the fourth inning.