WINONA — A coach says a Winona State University football player who collapsed and died during a workout likely died of a previously undetected heart condition.

Twenty-two-year-old Shawn Afryl died Monday night during a voluntary conditioning workout at the university’s Maxwell Field.

His high school football coach, Curtis Tate, said the family was told Afryl died of cardiac arrest because of an enlarged heart. No official cause of death has been released.