(CNN)Considered by many as the greatest MMA fighter in history, Jon Jones will return to the Octagon on Saturday for the first time in three years; albeit with a different look.
The 35-year-old, who has 26 UFC wins to his name, has stepped up a weight division for his highly-anticipated return, where he will face Ciryl Gane for the heavyweight title.
The two men came face to face ahead of the fight on Thursday with fans getting a glimpse of Jones' new physique.
"I developed a whole lot of belly and a whole lot of a**," Jones told BT Sport, adding that he's enjoyed being able to eat more in the buildup to the fight.
"It feels amazing. It just allows me to have as much fun as I can with the media and with the fans."
Opponents Jon Jones and Ciryl Gane face off during the UFC 285 weigh-in.
Photos and videos of Jones in training have tracked his transformation from a lean, slender fighter to a much heavier man.
Since walking away from the sport in 2020, Jones has worked with the likes of American bodybuilder Stan Efferding to make the jump in weight class.
Jones says that Efferding lived with him for nine months to help with his training, teaching him about the importance of sleep and diet.