Johnny Walker has announced his intention to transition to the heavyweight division, citing better performance potential without the difficulties of weight cutting. Walker disclosed that he has trained and sparred with Francis Ngannou, and despite having approximately a 20 kg weight difference while on a diet, he was able to work comfortably with the former heavyweight champion. He explained that cutting weight severely impacts his training quality, causing dizziness and low energy due to carbohydrate restriction. Walker believes he would feel significantly better competing at heavyweight where he can train at full strength without the debilitating effects of strict dieting.
Johnny Walker has publicly announced his intention to move from light heavyweight to heavyweight, stating that competing at the higher weight class would allow him to perform at his physical peak without the toll of severe weight cutting.

Walker, 34, currently sits ranked eleventh in the light heavyweight division with a professional record of 22-10. The Brazilian fighter, who trains out of SBG Ireland, is a notable physical presence even among light heavyweights, standing six-foot-six with an 82-inch reach. He lands an impressive 4.06 significant strikes per minute at a 55 percent accuracy rate, numbers that could translate powerfully if he moves up. Walker explained that restricting carbohydrates to make the 205-pound limit leaves him dizzy and drained during training sessions, undermining the quality of his preparation.
To gauge how his body might hold up at heavyweight, Walker has sparred with former heavyweight champion Francis Ngannou. Despite giving away roughly 20 kilograms to Ngannou even while on a diet, Walker said he was able to work comfortably with the Cameroonian. Ngannou, now 38, carries an 18-3 record and holds a 83-inch reach at six-foot-four, making him one of the most physically formidable opponents anyone could use as a measuring stick. Walker's ability to move with Ngannou in the gym appears to have reinforced his confidence in the move.

Why it matters
- Walker is a top-fifteen light heavyweight who could immediately disrupt the heavyweight landscape given his size and striking output
- Moving up would eliminate a weight cut that he says is actively degrading his training and, by extension, his in-cage performance
- His sparring experience with Ngannou provides a credible real-world data point for how his frame compares at the heavier weight class
- A successful transition could open a new career chapter for a fighter who already owns the physical dimensions of an elite heavyweight








