Nikolai Veretennikov (2-3 UFC) will fight Khaos Williams (6-4 UFC) on May 17 at UFC Vegas 117, according to Marcel Dorff. Veretennikov is looking to snap a losing streak in the UFC welterweight division. Williams has been competing in the UFC since 2019 and has experience against top-level competition. The matchup represents an important opportunity for both fighters to gain momentum in a competitive division. Details about the bout agreement were first reported by combat sports journalist Marcel Dorff.
Nikolai Veretennikov and Khaos Williams are set to collide at UFC Vegas 117 on May 17, with combat sports journalist Marcel Dorff first reporting the welterweight pairing.
Veretennikov enters the bout looking to reverse a skid in the UFC welterweight division, carrying a 2-3 record inside the promotion. A win would go a long way toward securing his footing in one of the most competitive divisions on the roster.

Williams, known as "The OxFighter," brings considerably more UFC experience to the matchup. The 32-year-old orthodox striker holds a professional record of 16-5 and has gone 6-4 since making his promotional debut in 2019. At six feet tall with a 77-inch reach, Williams presents a physical presence at 170 pounds, and his numbers reflect a punishing offensive output. He lands nearly five significant strikes per minute, a rate that places him among the more active volume strikers in the division, though his 39 percent striking accuracy suggests opponents often make him work for those connections. He attempts no takedowns or submissions to speak of, making his game plan straightforward: stand and trade.
Why it matters
- Veretennikov needs a victory to avoid falling deeper into must-win territory on his UFC contract
- Williams has faced top-level welterweights before, and a strong performance could push him back toward the fringes of the rankings conversation
- The stylistic dynamic favors a striking-heavy contest given Williams's pure stand-up approach and heavy output numbers






