Ulberg undergoes ACL surgery after UFC 327 title win

Carlos Ulberg underwent ACL surgery on his right knee following his light heavyweight title victory at UFC 327 on April 11, with the procedure taking place in the days after the championship bout.

Ulberg, 35, now carries a 15-1-0 professional record and holds the UFC light heavyweight title after the win, having entered the event ranked third in the division. The New Zealand native, who trains out of City Kickboxing and fights out of an orthodox stance, stands six-foot-four with a 77-inch reach. Known for his striking output, Ulberg lands an impressive 6.54 significant strikes per minute at a 55 percent accuracy rate — figures that place him among the more prolific and precise strikers in the 205-pound weight class. His grappling remains a secondary weapon, with 0.55 takedowns and 0.2 submission attempts per 15 minutes.

The injury occurred during the title fight itself, meaning Ulberg competed through the knee damage to claim the belt. Surgical intervention followed shortly after, and ACL recovery timelines in combat sports typically span several months to over a year depending on the severity of the tear and the athlete's rehabilitation progress.

Why it matters

• Ulberg's ACL surgery puts his first title defense on hold, leaving the light heavyweight division in a holding pattern at the top.
• The 205-pound weight class will need clarity on his recovery timeline before a mandatory defense or voluntary matchup can be targeted.
• Ulberg's striking-heavy style relies heavily on footwork and movement, making a full knee recovery critical before his return.