ALLEN PARK — With the loss of cornerback Bill Bentley for the season, the Detroit Lions are down to four cornerbacks with the game at the Carolina Panthers a few days away.

They also have questionable depth at safety with Don Carey (hamstring) not practicing and James Ihedigbo (neck) still not a certainty for Sunday.

Coach Jim Caldwell said on Thursday they are looking at all options with one roster spot open. He said the roster move will come from the practice squad.

“We do have one still available, we’re in the process of determining what we want to do with it,’’ Caldwell said. “It’s not like we don’t have a plan, we do. We’re working on it. 

“You’d have to anticipate and understand we’re at Thursday, the most likely thing is going to happen is we’re bringing somebody up. Nobody’s coming off the street and coming in to play for us in the next couple days,’’ Caldwell said.

He specifically named Mohammed Seisay, an undrafted rookie out of Nebraska, and safety Nate Ness, entering his fourth NFL season, as possibilities to bring up to the 53-man roster. 

“Both guys are working, both guys we believe in,’’ Caldwell said. “Whoever you see out there for us, filling that spot is going to do a really good job.’’

Technically, Bentley’s roster spot went to offensive lineman Garrett Reynolds after right tackle Corey Hilliard’s foot injury ended his season. He open roster spot is a result of Hilliard going on injured reserve.

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