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.