Siena University men’s lacrosse coach and Long Island native Liam Gleason died Wednesday from injuries sustained in a tragic accident at his home over the weekend, the school announced.

He was 41.

Gleason coached Siena the past seven seasons, led the program to a MAAC championship in May — the program’s first conference title in 11 years — and was a constant presence in the Capital Region’s lacrosse scene.

“A sudden, senseless loss carries a kind of pain that defies understanding,” Siena president Chuck Seifert said in a statement. “It’s hard to imagine anyone more universally loved and admired than Liam. Our community was blessed by Coach Gleason’s life.”

The beloved lacrosse coach fell down the stairs at his home around 4 p.m. on Sunday and sustained a serious head injury, the Alb

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