Valter Walker Calls Out Brother Johnny After Win

At Karate Combat 59 on February 13, 2026, UFC heavyweight Valter Walker defeated Zion Clark via grappling submission in 2.5 minutes, then called out his brother, light heavyweight Johnny Walker, disrespecting Johnny's wife. Johnny responded on February 14, expressing shame and disowning Valter temporarily. Both are booked soon, delaying any superfight. Adds family drama to Walker brothers' careers, potentially leading to future UFC booking.[2]