Lorenzo Fertitta: 'I've never seen Anderson Silva so motivated'

UFC Chairman and CEO, Lorenzo Fertitta, shares his thoughts on the return of former Middleweight champion Anderson Silva, who endured a devastating leg break back in Dec. 2013. "Spider" -- who held down his own special press conference earlier this afternoon (watch it here) -- will make his comeback against Nick Diaz in the main event of UFC 183, which takes place at MGM Grand Garden Arena in Las Vegas, Nevada, on Jan. 31, 2015. And to hear Fertitta tell it, Silva is motivated more than ever to recover from "the worst moment of his life" and make one final championship push. Will he do it?