ProWrestlingSheet reports that Brock Lesnar & Vince McMahon got into a verbal altercation after last night’s WrestleMania 34 event. The site claims that Lesnar was livid when he returned to the backstage gorilla position and “went off on McMahon,” and McMahon wasn’t happy. They add that sources claim that the incident was brief and heated, with Lesnar throwing the Universal Title either at a wall or at McMahon.

No word yet on what the cause of the altercation was, but Lesnar did apparently go off script near the end of last night’s main event, so that may have had something to do with it.