Nigerian professional boxer Gabriel Oluwasegun Olanrewaju tragically passed away over the weekend ... after the light heavyweight fighter collapsed during an eight-round bout.
The Ghana Boxing Authority confirmed the death of the 13-8 boxer ... stating during the third round of the match, Olanrewaju fell back into the ropes without any contact from his opponent, 12-1 Ghanaian fighter Jon Mbanugu.
Referee Richard Amevi immediately stopped the fight when he realized something was wrong with Olanrewaju .