Oakland Raiders quarterback Terrelle Pryor left Monday's game in the fourth quarter and later was diagnosed with a concussion, multiple media outlets reported after the team's 37-21 loss to the Denver Broncos.
Pryor took a hard hit on a run attempt on second-and-goal at the Denver 6-yard line, losing 2 yards on the play. He remained in the game for two more plays, a short completion and then an incompletion on fourth down.
When the Raiders got the ball back at the Broncos 20-yard line with 2:19 left, Matt Flynn was under center. Flynn completed a 19-yard pass to Marcel Reece, setting up Darren McFadden's 1-yard touchdown run.
With Pryor as the quarterback, the Raiders are off to a 1-2 start. Pryor completed 19 of 28 passes for 281 yards and a touchdown Monday. He didn't throw an interception.
Pryor's status likely will be in doubt for Oakland's Sunday home game against the Washington Redskins. The Ohio State product would have to pass the league's concussion protocol to get back on the field.
The Raiders also announced that cornerback Tracy Porter sustained a concussion in the third quarter.