Arizona State is looking into an outdoor workout that left one of its men’s hockey players hospitalized after collapsing during a team exercise Thursday morning, according to a university spokesperson.
The player, Matthew Mayich, remained in the hospital Tuesday, a person close to the family confirmed. That person requested anonymity because they were not authorized to speak publicly.
Chris Fiscus, ASU’s vice president of media relations, said the school is reviewing what happened.
“A student-athlete who collapsed during an outdoor exercise Thursday morning remains hospitalized,” Fiscus said. “The student-athlete, a member of the ASU hockey team, is not being named by the university because of privacy interests. The university is reviewing the circumstances surrounding the workout.”
Fiscus would not say whether the team had approved the workout. NCAA rules permit college hockey programs to begin formal activities once classes are underway, and ASU’s fall semester started Thursday.
Tempe Fire Medical Rescue said crews were dispatched at 8:31 a.m. Thursday to 400 S.
Rural Road, the address for Sun Angel Stadium, after a report of a “heat-related illness.” A patient was treated at the scene and then taken to a nearby hospital.
The timing came during a brutal stretch of weather in the Phoenix area. The National Weather Service said the average temperature Thursday was 92.5 degrees, with an extreme heat warning in place all week. The high climbed to 106 that afternoon.
Mayich is a defenseman and a St. Louis Blues draft pick.
St. Louis selected him 170th overall in the sixth round of the 2023 NHL Draft.
He attended two prospect camps with the Blues in 2023 and 2024, but never signed an entry-level contract. After being drafted, he finished a four-year run with the Ontario Hockey League’s Ottawa 67s and then spent one season at Clarkson University in 2025-26.
Following Clarkson’s season in March, Mayich announced he was transferring to ASU. He was set to play his sophomore season with the Sun Devils in 2026-27.
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