TROTWOOD (AP) -- An amateur boxer died after fighting in three bouts in a toughman contest in this Dayton suburb, authorities said.
Steven Burress, 27, of Martins Ferry, died Sunday at Good Samaritan Hospital in Dayton, said Ken Betz, director of the Montgomery County coroner's office.
Burress advanced to the heavyweight title fight Saturday night at Hara Arena after defeating two other fighters earlier in the evening.
During his title fight with Josh Snow, of Cincinnati, Burress was knocked to the ground, prompting the referee to call the fight.
Burress was standing under his own power when the fight was called.
It was his eighth one-minute round of the night.
Betz said Burress collapsed about an hour later. He was taken to the hospital by emergency medical workers stationed at the arena.
Betz said Burress, who had been struck in the head during the fights, was diagnosed with a blood clot on the brain.
He died at the hospital following surgery, Betz said.
He said the death will be ruled an accident.
Calls to Hara Arena seeking comment were referred to the Ohio Athletic Commission. A message seeking comment was left for the commission.