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The Cleveland Browns will face the Cincinnati Bengals on Thursday night with a depleted secondary.

Cornerback Joe Haden and safety Donte Whitner both left Sunday's 34-20 loss to the Arizona Cardinals with concussions. Neither is expected to play in Cincinnati on Thursday.

Free safety Tashaun Gipson said on a conference call that Haden and Whitner would miss the game. Coach Mike Pettine didn't go that far, but he did indicate the chances of them playing were not good.

"I'm not going to sit here and rule them out as we speak.," Pettine said Monday, "but they're in the protocol. I think it would be extremely difficult for them to be cleared in time to play on a Thursday."

Haden's situation is especially concerning. He missed the two games before Arizona with a concussion then left in the third quarter after falling while trying to tackle Michael Floyd. He has left games twice in the past four weeks with concussions.