Detroit Lions head coach Jim Schwartz has denied that Ndamukong Suh's behaviour in practice has been out of control.
Reports have claimed that Suh slammed a teammate's head into the turf and kicked out at others after the defensive tackle was fined $100,000 (£63,600) for a low hit on Minnesota Vikings centre John Sullivan.
"I can say unequivocally he has never slammed anybody's head to the ground or stomped on anybody," Schwartz said in a press conference.
"That's just inflammatory stuff, it gets headlines and it gets reaction. But I would bet that you guys would have reported that long before a guy that's never been to one of our practices reports it."
Detroit face the Washington Redskins in week three of the NFL season.
