Dunn and McMahon were reportedly upset because Lesnar and Undertaker both bled the hard way during the match and Lesnar aggressively pushed a doctor away in the ring because it disrupted the flow of the match.
F4WOnline.com that broke the story is now reporting that Brock Lesnar and The Undertaker were not reprimanded for bleeding during their Hell in a Cell match. There was said to be a lot of commotion backstage, but there are other reports that offer the opposite perspective.
Either way, neither Lesnar nor Undertaker was punished for their actions at “Hell in a Cell”. Brock was stitched up, and needed nine staples for the wound on his head, but Lesnar flew home shortly after that process on Sunday night. The Undertaker flew home on Monday morning.
WWE officials are 100% certain that the blood was not an accident. Any plans that were made to use blood in the match was planned by Lesnar and Undertaker themselves, not WWE. It’s not a coincidence that Lesnar did the same spot (head into the post) that he did at WrestleMania 31.