MANILA - Brian Viloria, who collapsed in his dressing room and was hospitalized for apparent exhaustion soon after he was knocked out in a title fight on Saturday, will have to remain at the hospital for at least two days.

Viloria won’t be cleared by doctors to fly home to the United States for at least 10 days, and he will need to return to the hospital to ensure there is no latent brain swelling, his manager Gary Gittelsohn e-mailed The Associated Press.

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All tests came back negative on Viloria, who was knocked out by Colombia’s Carlos Tamara in an IBF light flyweight title fight. Referee Bruce McTavish stopped the fight 1:45 into the 12th round.

After Viloria returned to his dressing room, he collapsed and was taken to the hospital.

“Even if you are conscious, as long as you had a difficult fight--he delivered a lot of punches and he also received many hits--it’s just a regular thing to undergo a check up,” said said Nasser Cruz, head of the boxing division of the Philippine Games and Amusement Board.

Neurologist Regina Macalintal of the Makati Medical Center told DZBB radio Viloria was in a stable condition.

“He is doing good. He just needs to rest in the hospital for one or two days.”

Viloria’s collapse stirred memories of what happened to Cebuano Z Gorres in Las Vegas last year.

Gorres won his bout against Luis Melendez, also of Colombia, but collapsed after the decision was read.

He was rushed to a hospital and eventually had two surgeries. He is set to return to Cebu in a few weeks. (AP/With a report from ML)