The St. Louis Blues say defense prospect Matthew Mayich is hospitalized after collapsing during off-season workouts with Arizona State University.
Mayich, 21, was taking part in outdoor exercises during a team-sanctioned activity when he went down, according to local NBC station 12News. AZ Central and The Arizona Republic reported that the incident happened on Thursday, August 21 at 8:31 a.m., and that Mayich was left in a coma.
Arizona State University has opened an investigation into the workout that preceded the collapse, according to Kate Strand and Jeremy Rutherford of The Athletic.
The focus now is on Mayich and his family as he continues to recover.
Mayich was getting ready for his first season with the Sun Devils after transferring from Clarkson University last season. He was expected to play a key role on the Arizona State blue line after settling in with Clarkson, where he posted seven goals, 15 points and a plus-13 rating in 34 games as a freshman.
Before that, Mayich spent four seasons with the OHL’s Ottawa 67’s. He was one of the first CHL players to commit to college in 2025, and in his first draft-eligible season in 2022-23 he put up 22 points in 64 games.
That performance led the Blues to take the mobile, two-way defender in the sixth round of the 2023 NHL Draft. He remained in the OHL for two more seasons, skating in 66 games in each year and recording 24 points and then 42 points.
At 6-foot-3 and 205 pounds, Mayich has drawn notice as a steady one-on-one defender who uses his stick well to steer opponents away from danger and create turnovers.
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