UFC legend Georges St-Pierre will return to the octagon this year to face middleweight champion Michael Bisping.
Only Bisping (20) has won more bouts in UFC than St-Pierre's 19 and the Canadian is widely regarded as mixed martial arts' greatest welterweight, having held the UFC's belt at 170 pounds twice, including a six-year, 11-fight streak.
UFC president Dana White said he was "not even close" to agreeing a reported mega-fight between St-Pierre and Conor McGregor, who is entrenched in back-and-forth with Floyd Mayweather Jr over a possible bout.
"George St-Pierre is always in shape, takes care of himself physically, so we'll see what happens," White told SportsCenter.
"George said he can make 155 pounds. Everyone wants to take a shot at Bisping, they think he's beatable and George St-Pierre is not different so he's going to step up and try to take his title."
St-Pierre's last defence came against Johny Hendricks in November 2013, after which he vacated his title, citing the need to recover physically and mentally from a gruelling career in the cage.
How he deals with a step up to 185 lbs remains to be seen, while Bisping is likely to come under fire for defending his belt against a man who could be four years removed from action by the time they meet, having retained the title against the retiring Dan hardy last year.
Top-ranked contender Yoel Romero - unbeaten in eight UFC outings - may feel aggrieved, having beaten former champion Chris Weidman in November.