Photo credit: Flexonline.com

Tomorrow, Saturday September 20th, is the 50th Anniversary of the Mr. Olympia in Las Vegas, and all eyes will once again be on the top two bodybuilders in the world, Phil Heath and Kai Greene.

Phil Heath, three time and current Mr. Olympia, will be competing in the "War for Four" against his fiercest rival, Brooklyn's own Kai "The Predator" Greene. In these exclusive interviews with Mark Gray, host of TSL Sports Talk, these men discuss the sport, the lifestyle and the biggest event in their professional lives. So before you see who holds up the Sandow trophy tomorrow night, listen to their interviews here to learn more about these men of muscle: