CB Rashean Mathis questionable to return

CLEVELAND -- Detroit Lions cornerback Rashean Mathis is questionable to return after suffering a groin injury.

Mathis left the game midway through the second quarter and was replaced by rookie Darius Slay, who picked up a pass-interference penalty on the next drive.

Meanwhile, Mathis was working on the sideline with trainers, testing the groin to see if he could cut and run on it.

Mathis had two tackles before leaving the game.