# Arizona hockey player collapses after workout

> Matthew Mayich, a 21-year-old NHL prospect, collapsed during a 106-degree workout at ASU, sparking calls for independent investigation.
- Title: Arizona hockey player collapses after workout · New York Post
- Summary: Matthew Mayich, a 21-year-old NHL prospect, collapsed during a 106-degree workout at ASU, sparking calls for independent investigation. Arizona State hockey…
- Keywords: matthew mayich, arizona state, st. louis blues, nfl, ncaa, hockey, heat illness, independent investigation, news, entertainment, Arizona, player
- Source: New York Post — https://nypost.com/2026/09/16/sports/troubling-accusations-emerge-around-arizona-states-matthew-mayichs-collapse
- Published: 2026-09-16T18:30:50+00:00
- Read time: 1 min
- Topics: matthew mayich, arizona state, st. louis blues, nfl, ncaa, hockey, heat illness, independent investigation, news, entertainment
## Collapse incident
Matthew Mayich collapsed during a workout at sun angel stadium.

> he was disoriented and little was done to help him in crisis
## Family lawyer claims
Family lawyer says Mayich showed signs of disorientation before collapsing.

> he was showing signs of not being able to complete tasks
## Trainer dispute
Trainer disputed the workout's intensity and left early before collapse.

> he left the practice early before the workouts were over
## University policy breach
ASU skipped vetting process for outside trainer per university policy.

> they have to go through a vetting process and sign a consultant police form
## Heat acclimatization
Mayich flew to ASU less than a week after returning from heat acclimatization.

> he flew from ottawa less than a week before his first workout
## University response
ASU says it's reviewing the incident, not investigating it.

> we're reviewing the facts and understanding the scenario
## Family demands
Family wants independent investigation by phoenix pd or attorney general.

> they’re calling for either phoenix pd, the attorney general or department of public safety
## Key takeaway

Arizona State hockey player Matthew Mayich collapsed during a heat workout, with family demanding an independent investigation into the incident.