Giants first baseman Brandon Belt underwent concussion testing Saturday after exiting Saturday's game due to dizziness, and while the test results won't be known until Sunday, he has been ruled out for Sunday's game, the San Jose Mercury News reports.
Belt isn't feeling well after a freak injury suffered before Saturday's game, and it wouldn't be surprising to see him go on the disabled list Sunday. He spent much of the first half on the disabled list while nursing a broken thumb.