Oakland Raiders running back Darren McFadden and linebacker Rolando McClain left Sunday's game against the Kansas City Chiefs in the first half with injuries.
McClain, who didn’t practice all week because of an ankle injury, played most of the half but came out after apparently aggravating his left ankle.
McClain returned to the game late in the third quarter with the Raiders down 21-0.
McFadden had two carries for 4 yards and caught one pass early before leaving the game Sunday. NFL.com's Steve Wyche reports McFadden returned to the sideline and grabbed his helmet and looked able to return to the game.
The Raiders also lost safety Matt Giordano to a neck injury.
The Associated Press contributed to this report.