There have been numerous reports that Vince McMahon and Brock Lesnar got into some sort of heated altercation at WrestleMania once the main event was over and we may now have a better idea of why that was. According to Wade Keller, the WWE Chairman was upset at the excessive amount of blood which came as a result of the stiff elbows delivered to Roman Reigns' forehead.
It's not surprising that McMahon was "irate" about the amount of blood on show because he's been dead set against it being shown on television ever since the company went PG a few years back.
Apparently, McMahon was also upset about the bump on the German announcer's table because that wasn't planned beforehand and they weren't prepared for it. None of this is likely to damage his relationship with Lesnar in the long run but it will be interesting seeing if Lesnar gets fined and if there any ramifications for Roman too (he must have known The Beast would try to bust him open).