Brazilian Jiu-Jitsu veteran Amanda Mazza sustained an arm injury while trying to secure a rear naked choke against Emily Hansen on CFFC BJJ 15 on 20 September 2025 in the historic 2300 Arena of Philadelphia. The strict weight match ended when the arm of Mazza broke during the entry attempt, so that Hansen’s victory was awarded by injury.
Amanda Mazza breaks her own arm in a grab match against Emily Hansen
The incident took place during what a normal grab exchange was. Mazza, a sevenfold CFFC BJJ competitor from Webb MMA, had protected the back control and worked to finish the rear naked choke when the injury took place. Hansen, who made her promotion debut of Checkmat Charlotte, defended the entry when the arm of Mazza broke.
Mazza showed remarkable calmness after the injury. Video images of the event show her quietly sitting on the mat, speak with Hansen and the referee pending medical attention. Responses on social media praised her toughness, where fans describe her as “more difficult than a steak of two dollars” and noticed how she “initially did not even realize what happened”.
In contrast to typical grab techels that result by Defensive actions, Mazza’s arm broke while she applied the entry instead of defending against one. The rear naked choke focuses on the carotis triangle area of the neck, using arm positioning to limit blood flow to the brain.
The 28-year-old Mazza has established himself as a respected competitor in the CFFC BJJ circuit. A purple belt under Jonathan Webb in Webb MMA in Washington Township, New Jersey, she participated seven times in the CFFC BJJ banner with three submission victories. Her background includes remarkable appearances on the UFC Fight Pass Invitational from 2023, where she competed against larger opponents, which demonstrates the grit who has defined its career.
Mazza’s trip to Brazilian Jiu-Jitsu started following a traumatic experience at the age of 18, which motivated her to learn self-defense. She is only five feet long and weighs around 115 pounds, has built up a reputation for accepting challenges against every opponent, regardless of the inequality of the size.
Hansen’s victory marked a successful CFFC debut for the Checkmat Charlotte representative. The injury finish represents an extremely rare event in competitive wrestling, whereby submissions usually result in a tap or escape instead of physical injury to the attacking competitor.
CFFC BJJ 15 contained a championship triple hater with a head of UFC veteran Pat Sabatini who defended his welterweight title against Richie Lewis. The event streamed live on UFC Fight Pass, giving the unusual injury a considerable exposure to the grasping community.
Recovery time lines for arm fractures in athletes usually vary from a few weeks to months, depending on the severity and location of the break. The return from Mazza to the competition will depend on the specific nature of her injury and successful rehabilitation.
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