The leading man of the premiere mixed martial arts organization in the world, UFC president Dana White has promoted a lot of fighters in his day. Thousands of fighters have fought under the UFC banner. A select few have gone on to become champions, while even less have inserted themselves into the never-ending conversation of who is the greatest of all time. For White, however, four names stick out among the pack with two current and two retired fighters on his short-list of all-time greats. In the lead-up to UFC 270 , which takes place Saturday at Honda Center in Anaheim, Calif., White revealed the four names in an interview with Yahoo! Sports