5 toughest UFC fighters that have never been knocked out

#4 Conor McGregor

McGregor is a monster

Say what you want about Conor McGregor but the guy is pretty damn tough. If you need an example, just go back and watch his fights against Nate Diaz where he took some serious punishment and still managed to come forward as if it barely fazed him. That's the heart of a true champion and it's clearly something the Irishman has worked on for a long time.

No matter how long a fight goes there's always an overwhelming confidence in McGregor's game that completely suspends the possibility of him being knocked out. He's just way too detailed when it comes to the smaller points of the fight that it's unthinkable to consider the prospect of him being knocked out by anyone, no matter how heavy.

This next fella is ironically coming off the back of a loss.