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Claim Text
When players reported for the first official team activity Aug. 20 at Sun Angel Stadium, the workout was not led by the coach. Instead, according to photographs and interviews, Powers wore a pair of slide-on sandals and watched from the side as Tim Ziesel, 39, a former Green Beret, shouted commands at his players.
Simplified Text
Fact: The team's first workout on Aug. 20 was led by former Green Beret Tim Ziesel, not the coach.
Confidence Score
1.000
Claim Maker
The author
Context Type
News Article
Context Details
{
    "date": "2026-08-20",
    "event": "First official team activity",
    "person": "Tim Ziesel",
    "location": "Sun Angel Stadium"
}
Subject Tags
Sports University Hockey
UUID
2396061e-b94f-4121-8cb2-3eebafa0f9fc
Vector Index
âś— No vector
Created
September 17, 2026 at 9:25 PM (3 weeks ago)
Last Updated
September 17, 2026 at 9:25 PM (3 weeks ago)

Original Sources for this Claim (2)

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Screenshot of https://nytimes.com/athletic/7600946/2026/09/17/arizona-state-hockey-greg-powers-matthew-mayich
Arizona State hockey player Matthew Mayich in critical condition after military-style workout
Completed News
50 claims 🔥
3 weeks ago
https://nytimes.com/athletic/7600946/2026/09/17/arizona-state-hockey-greg-powers-matthew-mayich

Arizona State University hockey player Matthew Mayich is in critical condition after collapsing during an intense, military-style workout led by a former Green Beret. The workout, implemented by coach Greg Powers to toughen up the team, is under review by the university and police, raising questions about NCAA guidelines and player safety.

College Hockey Arizona State University Player Safety Athletic Training NCAA Greg Powers Matthew Mayich Heat Stroke
Screenshot of https://nytimes.com/athletic/7641141/2026/09/28/arizona-state-hockey-players-greg-powers
Seven Arizona State men’s hockey players asked the university’s president to place the Sun Devils’ coaching staff on administrative leave pending further investigation into the workout that left sophomore transfer Matthew Mayich on life support.
Completed News
14 claims 🔥
1 week ago
https://nytimes.com/athletic/7641141/2026/09/28/arizona-state-hockey-players-greg-powers

Seven Arizona State men’s hockey players have requested the university president suspend the coaching staff following a workout that left Matthew Mayich on life support. They dispute the university's initial review, citing inadequate medical care and fear of retaliation.

Arizona State University Men's Hockey Player Safety Coaching Staff Investigation Matthew Mayich Heat Stroke Athlete Welfare

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