Overview
- On Aug. 20, 2026, 21-year-old defenseman Matthew Mayich collapsed during a sanctioned outdoor workout at Sun Angel Stadium and remains hospitalized in critical, unresponsive condition.
- ASU’s preliminary review found coaches did not submit a written training plan to the university’s strength staff and an outside consultant, Timothy Ziesel, did not have a contract to lead the session.
- The report describes a morning workout in high 80s heat with calisthenics, runs and a wind-down medicine-ball relay when Mayich stumbled, received iced towels and cool water and then deteriorated before EMS transport.
- Family attorneys and some teammates dispute parts of the report, saying water was withheld and cold-water immersion was not used, while the university says its trainer provided water and iced towels; no individual was assigned blame.
- ASU Police are completing an investigation that will be forwarded to the Maricopa County Attorney’s Office for independent review, the family is demanding an external probe, and the university has proposed a blue-ribbon advisory panel to change outdoor and consultant policies.