The lightweight mixed martial arts (MMA) world champion Khabib Nurmagomedov, undefeated in 29 fights, announced to everyone's surprise his retirement at 32 to keep a promise made to his mother, who died of Covid-19.
Conor McGregor, who is considered the biggest star in UFC history, posted on Twitter late Saturday night that he’s retiring from the Octagon. The announcement, which came after Amanda Nunes’ impressive flyweight title defense in UFC 250, came as a surprise, but already some believe it’s insincere and could be more of a publicity stunt. …