Chavez said that he took an ImPACT test to gauge his recovery and that there was only one part of his exam that turned out questionable. Chavez was able to resume baseball activities on Wednesday.
"Most of it looked really good, and with the concussions that are going on, they're really taking a lot of precautions," Chavez said. "If [the administrator] says I have to retake the test, I'll probably do it tomorrow. I'll just keep taking it until I pass."
Chavez suffered a concussion on May 2 while diving for a ball in the field, and he later left the game with what has been described as whiplash.
"The way the doctor explained it to me, my head was tilted a little bit and I kind of had a whiplash reaction," Chavez said. "He says if your neck is turned, you're more likely to have a concussion than if it's straight on."
Chavez said that he believes he had two previous concussions -- one playing football and one as a younger player, when the catcher hit him in the head with a throw back to the mound. Chavez was also tested for a concussion in Spring Training 2008 with the Athletics.