Georges St. Pierre says MMA needs someone like Nick Diaz

"As far as Diaz, of course I would like to fight him because he thinks he's better than me. I think I'm better than him. But I think he should not retire. He did all of the sacrifice in his life to be where he's at right now. He's at the highest point of his career, and if he retires now, he's left a lot of money on the table that could pay for all of the sacrifices he has made during all those years. I think the sport of mixed martial arts needs a guy like him."