ROSEMEAD, Calif. – When he walked into the UFC’s Rosemead, Calif. gym some 13 months ago, Cain Velasquez was the best challenger the promotion had to offer heavyweight champ Brock Lesnar. Now Velasquez is the champ, and Junior Dos Santos sits on the horizon waiting to dethrone him. Oddsmakers still see Velasquez as a slight favorite leading into his headliner with Dos Santos, which takes place Saturday at Honda Center in Anaheim, Calif., as the main event of UFC on FOX.