Stanford junior guard Jeremy Green collapsed on the court following Sunday's 81-74 overtime victory against DePaul in the seventh-place game of the 76 Classic at the Anaheim Convention Center.
According to Stanford spokesman Brian Rizzo, he began to experience some dizziness and stomach pain due to exhaustion.
Green is currently in stable condition, and expected to travel back with the team.
Green, who set a single-season school record with 93 three-pointers last year, was averaging 14.6 points a game for the Cardinal this season.
Green collapsed moments after the game.
Green appeared to be having trouble breathing and received attention from paramedics before he was taken from the arena.
Stanford athletic director Bob Bowlsby, in attendance of the Stanford-Texas women's game, spoke with Cardinal men's coach Johnny Dawkins about two hours after the incident.
Bowlsby relayed that Green has been fighting a stomach virus all week and has been unable to keep any food down.
He never lost consciousness, with the consensus being he was overcome by a combination of dehydration and exhaustion. He was transported to a local hospital where he was given fluids through an IV.
Green scored 19 points to lead Stanford. Anthony Brown added 14 points and Dwight Powell had 13 points and 10 rebounds for the Cardinal (4-2), which ended a two-game losing streak.
Stanford took a 71-67 lead in overtime before Brandon Young's layup and free throw narrowed the margin to 71-70 with 2:31 left.
Powell then made four three throws during a 6-0 spurt that extended the lead to 77-70 with 59 seconds remaining, and the Cardinal held on for the win.