Jack Swagger or Jake Hager, that is the question...explains the ripped, renowned former pro wrestling heavyweight champion, on the eve of his transition into the toughest proving ground in sport: heavyweight MMA fights getting punched in the face with 4oz gloves by 250 pound men who want to take your head off, or snap your limbs.

A long way from the long-legged spandex of the WWE, where he was a champion. Like fighting, it's sport entertainment. But this is a little different, and he will debut alongside the greatest heavyweight of them all tomorrow night at The Forum here in Lala land.

Hager makes his neophyte bow; Fedor Emelianenko enters the cage for the last time after two decades of prominence.

“Right now it’s going to be Jake Hager, that’s what the billboard will say. But in the future I hope to fight under Jack Swagger,” explained the 36 year old who is squeezed into a sleek suit, shirt and tie. What he alludes to, of course, is the shift in persona, as well as the shift in fighting forms.

“I’m making MMA great again for pro wrestlers. I don’t know if I’m trying to confuse MMA fans who are new to me with four different names, but it’s a work in progress. I definitely want to bring that persona, charisma and character into the cage.”