The identity of the man that clashed with Jason Kelce on Penn State’s campus last weekend remains a mystery. The university police department is still trying to figure out who got into an altercation with the former Eagles center before the Nittany Lions’ game against Ohio State, according to TMZ Sports.

Former NFL All-Pro center Jason Kelce took to his podcast – with Kansas City Chiefs tight end Travis Kelce voicing support for his brother – to once again express regret for his actions after a viral video captured a “heated moment” between the retired Super Bowl champion and a fan over the weekend at Penn State.