I'm not really sure how injured HBK was coming into WM 14, I assume it's been exaggerated over the years, because he's doing stuff in the first half or so of the match that if he had the back injury they say he had, he couldn't have been moving like that at all. However things take a real hard turn not so much after the ugly ass Flair Flip bump but actually after a very rough and badly timed inverted atomic drop that came right after, which was the shortly followed by the face first table bump off the apron where he jammed his knee shortly after that. From that point on he's in absolute agony and there's no way he could have sold a back injury that realistic unless he had a pretty bad one, speaking from a dude who has been dealing with a lower back issue for 3-4 years now that at times can be so bad where a slight misstep, twist, or sneeze can drop me to my knees and getting out of bed seems impossible. There were a few times after that where he was in such pain he couldn't even move for the next spot and Austin either had to physically position him or just give up and throw punches or kicks instead while Shawn looks like he's in such pain he was in tears.