SAO PAULO — Glover Teixeira returned from MMA retirement to box Mauricio “Shogun” Rua in a battle of former UFC light heavyweight champions in the main event of Spaten Fight Night 3, which goes down in Sao Paulo, Brazil on Aug. 29, and it’s not a one and done for him.

Rua told MMA Fighting earlier this week that he will lay down the gloves after the eight-round boxing clash, but Teixeira takes a different approach to this new venture.

“I don’t think I’m going to have a [long] career after this, but I say it’s not my last fight because who knows?” Teixeira said at the pre-fight press conference. “Maybe a good match-up against someone my age. I’l