He's got so much heart it's ridiculous, he was also landing good shots in the 5th round before Cain finished him.
Though after watching his last fight he's doesn't get off the clinch very well anymore, he almost welcomes getting hit to (he thinks?) tire out his opponent. I want to see his fight more but that's me being selfish. I'm almost positive he will fight again. JDS vs Reem is a fight I would like to see