Brazilian jiu-jitsu veteran Amanda Mazza sustained an arm injury while attempting to secure a rear naked choke against Emily Hansen at CFFC BJJ 15 on September 20, 2025, at Philadelphia’s historic 2300 Arena. The strawweight bout ended when Mazza’s arm broke during the submission attempt, awarding Hansen victory by injury.
Amanda Mazza Breaks her Own Arm in Grappling Match against Emily Hansen
The incident occurred during what was a normal grappling exchange. Mazza, a seven-time CFFC BJJ competitor from Webb MMA, had secured back control and was working to finish the rear naked choke when the injury happened.