Arizona State hockey acknowledges collapse of player Matthew Mayich during workout
Yahoo Sports • 1 min read • Latest: Sep 6, 2026, 2:28 AM
Last updated Sep 6, 2026

Arizona State hockey released a statement supporting defenseman Matthew Mayich following his collapse during an outdoor team workout on August 20. The 21-year-old remains in a coma following the incident, which occurred on the first day of the fall semester. The workout was led by Tim Ziesel, an ex-Green Beret who was hired by head coach Greg Powers. Legal counsel for the Mayich family alleges that Arizona State University failed to properly investigate the circumstances of the event, asserting that the athlete has zero chance of recovery. Conversely, counsel for Ziesel maintains the conditioning session was of mid-level intensity comparable to standard high-school football training. Mayich, a St. Louis Blues draft pick from 2023, is the subject of ongoing scrutiny regarding the safety and oversight of team-mandated conditioning drills.
- •Matthew Mayich collapsed during an outdoor team workout on August 20.
- •The 21-year-old remains in a coma following the incident.
- •Legal counsel for the Mayich family claims the player has no chance of recovery.
- •An attorney for the workout leader describes the session as mid-level intensity.
- •Mayich was selected by the St. Louis Blues in the 2023 NHL Draft.
- 2:28 AMYahoo Sports — Arizona State hockey acknowledges player who collapsed during workout
"Arizona State hockey acknowledged Matthew Mayich's collapse with a post on X. Mayich collapsed after a team workout on Aug. 20.
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