Dana White: I don't want to see legends in the UFC past their prime

UFC president Dana White has not been shy about saying that legendary middleweight Wanderlei Silva should probably hang up the gloves if he lost to Cung Le – and if Silva didn't retire on his own, the likelihood that White would retire Silva for him was high.
Wand beat Cung Le in the second at UFC 139 on Saturday night, but White still would be happy to see him retire.

"I just don't want to see anyone hurt – that's all I care about," White said. "When you get to a point – and in my opinion, I'm no doctor –  you start getting knocked out on a regular basis, that's it. I don't want to see that any more. I don't want to see it."
"Wanderlei's a warrior – he's been around forever and people love him. I love him – he's been great to the UFC and to the sport, and I'm not going to have that stuff happen. People can disagree with me or whatever, but go start your own organization. I'm not doing that. I don't want to see these guys around past their prime."

"I think (Wanderlei) gets it. I've been very clear and open and honest about it. He looked good (Saturday). I'd be cool with (him walking away after the win), too. I would never try to talk somebody out of retirement. Never, ever, ever would I do that. Nope."

 source: heavy.com