I thought it was a premature stoppage. Imo Marquez was winning the fight and only had to survive a couple more rounds before Vazquez would have been stopped on cuts anyhow.

The judges had Vazquez winning by 1 point at the time of the stoppage and he was badly cut. If Marquez could have weathered the storm there is every chance he could have gone on to win that fight.

It's not like he was being dominated or outclassed, it was pretty much a dead even fight and had he come through that round I'd have said he would have had at least a 50/50 chance of winning considering the state of Vazquez's face.

A fighter should never get stopped if he's clearly still in the fight, on his feet and fighting back.