I'm a Chuck Liddell fan, and as that, I would hate to see him get seriously hurt, so I hope he retires. He's been knocked out three times in the last few UFC fights and It just looks like he can't take a punch anymore. Dana White has states that Chuck is done, but he's said that before and has allowed Chuck back to fight in the UFC.
Regardless of whether you're a Chuck Liddell fan or not, you have to agree that he was one of the greatest fighters in MMA and UFC history. Even though he was knocked out in UFC 115, you must admire the way he went out there opening up and throwing chingasos. He went out like a true warrior.