As noted before, Brock Lesnar had a backstage altercation with Vince McMahon after defeating Roman Reigns in the main event of WrestleMania 34.
Though at that point the detailed reason behind this dispute was not known and it was said that Brock went off script during the ending of the bout.
Now Pwtorch has revealed that Lesnar was confronted by Mr. McMahon because Roman Reigns was not expected to get busted open the way he did during the bout.
The site also notes that the German Announce team was not aware of their table being used in a spot for the bout, so it may have been a nonscripted moment as well.
No word yet on what this confrontation between the Boss and the Beast means for the future of Brock Lesnar, but as we noted before, he is now scheduled to defend his Universal Championship at the Greatest Royal Rumble against Roman Reigns.