ASU hockey player hospitalized after workout collapse

Arizona State University hockey player Matthew Mayich remains hospitalized after collapsing during an outdoor workout in Tempe on August 20, 2026. The 21-year-old defenseman from Ontario, Canada, suffered a medical emergency at the university's Joe Selleh Track, prompting an emergency response and an ongoing investigation by the school.

Emergency crews from Tempe Fire Medical Rescue were dispatched to the track at approximately 8:30 a.m. on August 20 following a report of a heat-related illness. A patient was treated at the scene and transported to a Phoenix-area hospital. While initial reports cited a possible cardiac event, officials have not publicly announced a definitive diagnosis for what caused the collapse. The exact circumstances surrounding the workout and the medical emergency are now under review by Arizona State.

The incident occurred as ASU's fall semester began, coinciding with the start of the NCAA's allowed period for college hockey team activities. An extreme heat warning was in effect for the region at the time. The National Weather Service reported that the temperature in the Phoenix area reached 106 degrees that afternoon, though it was approximately 88...