Home plate umpire Angel Hernandez, center, talks with Oakland Athletics manager Bob Melvin, left, and third base coach Mike Gallego, right, in the fourth inning of their interleague baseball game against the San Francisco Giants Thursday, July 10, 2014, in San Francisco. Hernandez replaced umpire Adrian Johnson who left the game earlier in the inning. (AP Photo/Eric Risberg)
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.