“By July I should be ready,” the 34-year-old Russian wrote on social media, posting a video on the treadmill.
However, The Eagle made it clear that it was not about a return to MMA.
“Not MMA,” Nurmagomedov added.
Fans speculated that the sport could be a grappling match, a football match, or a marathon.
Undefeated Khabib Nurmagomedov last entered the octagon in October 2020, successfully unifying the interim and current UFC lightweight titles against American Justin Gaethje, after which he announced his retirement.