Oakland Raiders rookie quarterback Derek Carr suffered a concussion during Friday's preseason game against the Detroit Lions, head coach Dennis Allen announced after the contest.
Carr exited Oakland's 27-26 win over the Lions with under six minutes left after taking a hard shot from Detroit's Larry Webster on a pass attempt.
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The 2014 second-round pick played well prior to the injury, engineering three scoring drives and completing 9-of-16 passes for 109 yards and a touchdown.
Carr, currently second on the Raiders' depth chart behind veteran Matt Schaub, will have to pass the league's concussion protocol in order to play in Oakland's third preseason contest, which will be next Friday at Green Bay.
[SportsNetwork.com]
