Detroit Lions center Dominic Raiola could be facing a one-game suspension for stepping on Chicago Bears defensive tackle Ego Ferguson.

Raiola said it was accidental.

“Obviously I took a good look," Lions coach Jim Caldwell said. “Looked at both the coach’s copy and also the television copy as well, and I believe what Dom told me, that it was inadvertent. But I can also see why it obviously is being reviewed by the league and everybody’s taking a real good look at it because you can also see the other side of that as well. There’s a league protocol to it. It’ll be reviewed, taken a look at and we’ll deal with the issues after there’s been some determination there.”

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Aaron Wilson covers the Ravens for The Baltimore Sun