"He felt better after the game, and he's cleared to play," Angels manager Mike Scioscia said before Saturday afternoon's game.
Aybar was shaken up Friday in the top of the third inning when he slid hard into second base attempting to break up a double play. He collided with Oakland shortstop Orlando Cabrera, taking a shot to the head.
Aybar remained in the game briefly, but he came out after the fourth inning, complaining of dizziness, and was replaced by Howard Kendrick.
Aybar was hitting .486 (17-for35) in July entering Saturday's game. He had raised his average from .275 to .302.
Eric Gilmore is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.