Filed under: Featured Videos , News , UFC , Videos SAO PAULO – Retired UFC heavyweight and former interim champion Antonio Rodrigo Nogueira decided he needed to retire when he realized how he was spending most of his time. “I had eight surgeries in the past five years,” Nogueira, 39, told MMAjunkie. “So, for sure, I spent more time doing physical therapy than training. Seven months a year, I was doing physical therapy – five months a year, I was training.” Not a good ratio for a professional fighter, to be sure. Although Nogueira (34-10-1 MMA, 5-6 UFC) was once renowned for his durability, he knew things weren’t going to get any better. So he accepted an offer from UFC President Dana White to retire and take a role behind the scenes with the promotion in his native Brazil.