By Andrew Holleran A former UFC star is coming out of retirement. Henry Cejudo, a former two-division champion, is eyeing a return to the octagon, his agent confirmed on Sunday evening. The MMA star’s agent told ESPN that Cejudo plans on submitting to the USADA drug-testing pool on Monday. From ESPN.com: Henry Cejudo will re-enter himself into the USADA drug-testing pool Monday, his manager Ali Abdelaziz of Dominance MMA told ESPN on Sunday. That signifies that Cejudo, a former Olympic gold medalist in wrestling, is on his way out of retirement after two years. Fighters re-entering the pool ar…