Late in last night's loss to the Broncos, Terrelle Pryor left the game with a concussion and didn't return. The strict new guidelines for concussion state that any player even suspected of having a concussion must be taken to the locker room for observation in a process that takes about 15 minutes to conclude.

For that reason, he exit from the game was not cause for great alarm. But his tweet this morning that he can't remember what happened does raise some concern about his status for this week.

Sorry about the loss RaiderNation. I don't remember much ! Good hit by whoever it was. I heard our team fought well .. We will be back! — Terrelle Pryor (@TerrellePryor) September 24, 2013

The more interesting thing in light of this tweet is that Pryor didn't leave the game immediately following the hit. He stayed in the game for two plays in which he actually completed a pass to Rod Streater to set the Raiders up in fourth and goal at the one yard line. He then threw another pass to Denarius Moore which was defended in the end zone for a turnover on downs.

Also, according to Mike Garafolo of Fox Sports, he said he Broncos' linebacker Wesley Woodyard told him Pryor at least knew what happened immediately following the hit.

Pryor talked to Woodyard after the hit. Woodyard told me Pryor told him, "I knew that was you that hit me." Guess he doesn't remember now. — Mike Garafolo (@MikeGarafolo) September 24, 2013

For that reason, he seemed at the time to be ok, and according to his tweets Tuesday following the one above, he is doing fine.

I feel great by the way! Thanks for the concern ! Go Raiders! — Terrelle Pryor (@TerrellePryor) September 24, 2013

Im ready to go. — Terrelle Pryor (@TerrellePryor) September 24, 2013

It's a short week for the Raiders which makes raises concern about Pryor's recovery time. Practice will resume Wednesday at 11:15 and he will have to pass a concussion test before he can take the field each day.

If he is unable to practice this week, the team would likely go with Matt Flynn against the Redskins on Sunday.

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