MMA Fighter Isaac Johnson Dies at 31 After Collapsing During Chicago Match

A Thai boxing debut turned tragic in Chicago when MMA fighter Isaac Johnson collapsed in the final round of the match and later died at a nearby hospital.

MMA athlete Isaac Johnson died after collapsing in the final round of a Thai boxing match in Chicago, officials confirmed. The 31-year-old fighter was competing at the Matador Fighter Challenge at Cicero Stadium on November 21, 2025, when the incident occurred.

Authorities said Johnson was facing opponent Corey Newell in the third and final round when he suddenly went down. According to a town spokesperson who spoke with NBC 5 Chicago, an ambulance was dispatched at 8:38 p.m. for "an injured fighter." Johnson was taken to Loyola University Medical Center, where he was pronounced dead at 12:01 a.m.

Authorities Launched an Investigation

The Cook County Medical Examiner's Office confirmed that an autopsy has been scheduled to determine Johnson's cause and manner of death. The match was Johnson's first Thai boxing bout, and event officials stated he had passed all required medical checks prior to entering the ring.

The Illinois Department of Financial and Professional Regulations (IDFPR) is also reviewing the circumstances surrounding Johnson's death.

In a statement, a spokesperson said, "The Illinois Department of Financial and Professional Regulation offers their sincere condolences to the family and loved ones of Mr. Johnson. The agency is aware of the events and will be thoroughly reviewing the circumstances surrounding Mr. Johnson's passing after his amateur Muay Thai bout at Cicero Stadium."

Promoter Expresses Grief After Tragic Incident

Event promoter Joe Goytia addressed the tragedy in a statement shared on Facebook. "This is a post I hoped to never make," he wrote. "Last night, one of the fighters in our event, Isaac Johnson, collapsed towards the end of his fight. Medical attention was given by medical staff on hand and he was transported to hospital. I was then informed at around 1:30 a.m. this morning that he didn't make it."

"I don't have the words to express how I feel right now," Goytia added, offering his condolences to Johnson's loved ones. "We will know more as the medical report is released."

Team Remembers Johnson as a Beloved Friend and Father

Johnson's gym, Mission MMA Chicago, also mourned his loss in an Instagram message, remembering him for the person that he was. "He was an incredible person. A great friend and loving father. He is missed by us all," the statement read.

The team asked for privacy as his family grieves and noted they are waiting for the family's approval before organizing community support.

"We pray that Isaac Johnson rests in peace and that his family finds comfort in knowing how loved he was by us all," the statement concluded.

Authorities and event organizers said additional details will be released once the medical examiner completes the autopsy.