Carlos Ulberg He had to push himself to the limit to win. Jiri Prochazka in the main fight of UFC 327, held last Saturday (11). The New Zealander faced the Czech samurai and, even after suffering a knee injury in the first round, managed knock off The rival and to win the light heavyweight belt (up to 93 kg). Despite the resounding victory, the scenario could have been different if the fight had lasted longer.
In an analysis published on social media, sports physician and content creator Brian Sutterer explained that Ulberg's injury could quickly compromise his ability to continue fighting. According to the specialist, the fighter's knee would tend to swell due to hemarthrosis, which would drastically reduce his physical condition.
“If this fight goes beyond the first round, Ulberg’s knee will quickly begin to fill with blood (hemarthrosis), making it unlikely he can continue fighting. He had the remainder of that first round to finish the job before his knee betrayed him, and that’s exactly what he did,” wrote Brian Sutterer.
If this fight goes beyond the 1st round, Ulberg's knee quickly starts to fill with blood (hemarthrosis) making it likely impossible to continue fighting.
He had the rest of that first round to get the job done before the knee failed him, and he did just that https://t.co/lMcOQbMbhQ
— Brian Sutterer MD (@BrianSuttererMD) April 12, 2026
Carlos Ulberg suffered a rupture of the anterior cruciate ligament (ACL).
Although he has not yet confirmed it, Sutterer says that Carlos UlbergHe likely suffered a rupture of the anterior cruciate ligament (ACL), which is one of the most frequent orthopedic injuries, especially among athletes.
Responsible for stabilizing the knee, the ligament prevents excessive displacement of the tibia relative to the femur and helps control the rotational movements of the joint.
In most cases, the injury occurs without direct contact, being caused by sudden movements, such as abrupt changes of direction with the foot fixed on the ground, rapid decelerations, improper landings after jumps, or even hyperextension of the knee. At the moment of rupture, it is common to hear a popping sound, followed by intense pain, rapid swelling, and a feeling of instability, as if the knee were giving way.
Treatment varies according to the severity and the patient's profile: it can be conservative, with physiotherapy focused on muscle strengthening, or surgical, indicated mainly for athletes, with ligament reconstruction through grafting. Complete recovery, in surgical cases, can take between nine and twelve months.
Watch Ulberg's knockout of Prochazka at UFC 327
ON ONE LEG 🤯@UlbergCarlos is the new light heavyweight champion of the world with a thunderous RD1 knockout! pic.twitter.com/4MvxJ4vx5x
- UFC (@ufc) April 12, 2026
THE KING IS @UlbergCarlos 🏆
He wins the light heavyweight title by KO at #UFC327! pic.twitter.com/SyjazDMeAA
- UFC (@ufc) April 12, 2026
UFC 327 results
MAIN CARD
Light heavyweight (up to 92,9 kg): Carlos Ulberg derrotou Jiri Prochazka by knockout (punch) at 3:45 of round 1 and won the light heavyweight belt.
Light heavyweight (up to 92,9 kg): Paulo borrachinha derrotou Azamat Murzakanov by technical knockout (high kick) at 1:23 of round 3
Heavyweight (up to 120,2 kg): Josh Hokit defeated Curtis blaydes by unanimous decision of the judges (29-28, 29-28, 29-28)
Light heavyweight (up to 92,9 kg): Dominick reyes derrotou Johnny Walker by split decision of the judges (29-28, 28-29, 29-28)
Featherweight (up to 65,7 kg): Cub swanson derrotou nate landwehr by knockout (punch) at 4:05 of round 1
PRELIMINARY CARD
Featherweight (up to 65,7 kg): Aaron Pico defeated Patricio pitbull by unanimous decision of the judges (30-27, 30-27, 29-28)
Welterweight (up to 77,1 kg): Kevin holland derrotou Randy Brown by unanimous decision of the judges (30-27, 30-27, 30-27)
Light weight (up to 70,3 kg): Mateusz gamrot derrotou Esteban Ribovics by submission (katagatame) at 4:18 of round 2
Straw weight (up to 52,1 kg): Tatiana Suarez placeholder image derrotou Loopy Godinez via submission (rear naked choke) at 2min29s of R2
Light weight (up to 70,3 kg): Chris Padilla x MarQuel Mederos It ended in a tie by majority decision of the judges (29-27, 28-28, 28-28).
Average weight (up to 83,9 kg): Vincent Luque derrotou Kelvin Gastelum by submission (triangle choke) at 4:08 of Round 1
Welterweight (up to 77,1 kg): Charles Radtke defeated Francis Meadow by unanimous decision of the judges (30-26, 30-26, 30-26)
Read More about: Carlos Ulberg, Jiri Prochazka, UFC 327
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