Pittsburgh Steelers wide receiver DK Metcalf was seen on camera getting into an apparent altercation with a fan during a commercial break in the second quarter of Sunday's game against the Detroit Lions.

As the game returned from commercial break, commentators Jim Nantz and Tony Romo provided brief commentary on the altercation.

CBS Sports rules analyst Gene Steratore provided further analysis of the incident, saying that because game officials did not witness the interaction between Metcalf and the fan, they could not penalize Metcalf from an officiating or in-game standpoint; the league office will take further action at an appropriate time.

After the game, the fan involved in the altercation with Metcalf  "categorically denies using the 'N-word,' the 'C-word' or any racial, misogynistic, or hate-based language during the incident," according to a statement obtained by ESPN from the Michigan law firm representing the fan.

Shawn Head and Sean Murphy of Head Murphy Law Firm said in the statement to ESPN that the fan, Ryan Kennedy, has experienced "harassment, threats and messages advocating violence" since social media reports accused Kennedy of using a racial slur toward Metcalf and making a disparaging comment about Metcalf's mother. 

Steelers coach Mike Tomlin said after the game that he had not talked to Metcalf. 

"I heard about it, but I hadn't seen it, and I hadn't had an opportunity to talk to DK, and so I have no comment," the coach said. 

Metcalf finished the game with 4 catches for 42 yards.