On the takedown Weidman hits his head, Rockhold is the one who did the takedown so I don't know what you are talking about when you say Weidman hurt himself you clearly haven't watched the fight recently if you think Weidman took Rockhold down after the wheel kick.
If you want another example of someone that isn't gassing then getting rocked and all of a sudden looking gassed Hendo vs Shogun 1 is a great example only Shogun has a better chin and recovery than Weidman so he eventually recovered and Weidman didn't. Jones vs Shogun is another example of how someone who is rocked can look gassed, Jones started the fight with a flying knee and Shogun looked gassed he obviously wasn't as that happened in less than a minute. Another example is Lombard vs Magny after round 2 where Lombard took a similar beating and got finished in the next round cause he never recovered.
No one is going to look fresh in the 4th round after taking the amount of big shots Weidman took after the wheel kick in the 3rd round. Besides that isn't even what I said, I said that Rockhold was gassing in round 3 before the wheel kick and Weidman was picking up the pace which he was, everything changed after the wheel kick.
Here is a gif of the takedown where Weidman spins one way then Rockhold spins him the other way and he lands on his face.
