Jim Caldwell said the NFL is looking into Dominic Raiola's cut block on New England Patriots defensive lineman Zach Moore.

Caldwell said he spoke with Raiola, but he kept the nature of their conversation private. Caldwell said the Detroit Lions are not considering punishment for Raiola but would not answer whether Raiola could miss Detroit's game Thursday against Chicago.

Caldwell said he had not heard anything in regard to that type of discipline from the league.

"Game to game it's always different," Caldwell said. "There's always issues and things that you've got to manage and handle. If that does arise, we'll find a way to get around it."