Former San Sebastian College standout Gilbert Bulawan died of heart attack on Sunday during a practice of his team Blackwater at the SGS Gym in Del Monte, Quezon City.

The Blackwater Elite coaching staff immediately rushed the 29-year-old Bulawan to the Capitol Medical Center but he was declared dead on arrival.

Bulawan, a native of Legazpi, Albay, was the 17th overall pick by Meralco during the 2011 Philippine Basketball Association Rookie Draft.

The 6’4 forward Bulawan, known for his defensive play, was also once a member of Barako Bull before the Elite under coach Leo Isaac recruited him.