It was actual internal bleeding and coughing up blood. He was taken into care after the match. I am inclined to believe everything after the kick was real, I am still skeptical regarding the actual kick while he was down. Generally if it was an outside cut I would call it fake, but its kinda difficult to fake coughing up blood in the amounts he was that night.
The rock is a heavyweight, so he'd have a far better chance in an actual fight than Mayweather would.
I've been a WWE fan for about 10 years non stop so I rarely miss a show. The Money Maywhether vs Big Show is going to be one of my favorite matches at wrestlemania. If Maywhether doesn't win I will be VERY suprised, not because he's the "best fighter in the world" because its well WWE.
Maywhere aint just anybody. He's "the best boxer in the world" If you have a big enough name, I'm sure WWE will pay you, but not just anybody.