Alex Pavlovic has the news at CSNBayArea.com:
Aoki was pulled after four innings of Wednesday’s 2-0 loss to the Houston Astros and was showing signs of a concussion. After getting hit in the head by a pitch Sunday, Aoki passed a concussion test the next day and passed further tests on Tuesday. But Bochy said Aoki felt lightheaded and dizzy in the early innings Wednesday.
“He’ll be reevaluated tomorrow and we’ll decide what to do,” Giants manager Bruce Bochy said after Wednesday’s game. “He felt fine yesterday. He was evaluated. We’ll know more tomorrow, but he showed symptoms. My guess is we’ll have to be careful here.”
This is probably going to end up with Aoki being placed on MLB’s new 7-day concussion disabled list.
The 33-year-old outfielder has been an excellent top-of-the-order presence for San Francisco when healthy, batting .302 with a .368 on-base percentage. He missed most of July with a fracture in his right leg.