AP

Dolphins guard Richie Incognito has a reputation as a dirty player on the field. He may also be facing trouble for a hit off the field.

Adam Schefter of ESPN reports that Incognito punched and knocked out a hotel security guard in an incident before the start of training camp. Schefter cites one unnamed person who knows Incognito as saying that Incognito was punched first.

Schefter reports that the Dolphins know about the incident, and he quotes an unnamed source saying, “they’ve done everything to bury it.”

The hotel’s security cameras caught the incident, but the video has apparently not been turned over to police or to the NFL. The incident could constitute a violation of the league’s personal-conduct policy, but if the video remains under wraps and Incognito isn’t charged, it’s unlikely that he would be in any trouble with the NFL.