Carlos Ulberg's manager Ash Belcastro confirmed that the fighter has suffered a torn anterior cruciate ligament (ACL). The surgery reportedly went "very well," and Ulberg is focused on returning to competition as soon as possible. However, recovery from this type of injury can take up to 12 months, making it uncertain whether Ulberg will compete in the octagon by the end of 2026. The post raises the question of whether an interim title should be introduced during his absence.
Carlos Ulberg has suffered a torn ACL and faces up to 12 months on the sidelines, his manager Ash Belcastro confirmed on April 17, casting serious doubt over the New Zealand light heavyweight's availability for the remainder of 2026.
Ulberg, known as "Black Jag," carries a 15-1 record and holds the number-three ranking in the light heavyweight division. The 35-year-old City Kickboxing product stands six-foot-four with a 77-inch reach and has established himself as one of the most dangerous strikers in the 205-pound weight class, landing 6.54 significant strikes per minute at a 55 percent accuracy rate. Belcastro indicated the surgery went very well and that Ulberg is targeting a return to competition as quickly as possible, though the nature of an ACL recovery means a timeline of up to a full year is realistic.
Why it matters
- Ulberg is ranked third at light heavyweight, meaning his extended absence creates a significant gap near the top of the division
- A recovery window stretching into early 2027 could delay any title shot he had been building toward
- The injury reopens the debate around whether an interim light heavyweight title should be introduced to keep the division active during his absence
- His elite striking output — among the highest in the division — makes him a difficult fighter to replace in high-profile matchmaking
