Quarterback Sam Bradford's hard hit during the third quarter of the Eagles 20-19 loss to the Miami Dolphins on Sunday may keep him out of play next week.

Howard Eskin of CBS Philly sports tweeted Sunday night Bradford said he had trouble remembering the first half of the game after suffering a concussion.

Les Bowen of the Daily News, tweeted that Bradford suffered a grade two AC joint sprain. But the sprain was in his non-throwing shoulder, making it unclear how much time he could miss for it.

NFL.com reported of the hit: "Bradford immediately motioned to leave the game, and then walked to the locker room while in clear pain. The Eagles later announced that Bradford suffered the concussion and that X-rays he underwent on his left shoulder were negative. He did not return to the game."

Under the NFL's mandatory concussion protocol, he will have to be cleared by an independent doctor before he could return to play. Philadelphia's next game is Nov. 22 against the Tampa Bay Buccanneers.