Amateur boxing's governing body swiftly rejected Ukraine's appeal of world champion middleweight Ievgen Khytrov's narrow loss to Britain's Anthony Ogogo on Thursday, when it also sanctioned two referees for curious decisions during previous fights and expelled a technical official.

Ogogo beat the top-seeded Khytrov in a fight decided by a second tiebreaker, which is rarely required in amateur boxing.

The final score was 18-18, sending the decision to the tiebreaker in which every punch scored by all five ringside judges is totaled. That total was 52-52, sending the bout to a simple vote for the winner by the five judges.

Ogogo crumpled to his knees after learning he had won, later leaping up and down in the ring in celebration. The breakdown of the final vote isn't released.

"I just believed in myself," Ogogo said. "Nobody thought I was going to win that fight, apart from me, my team, my family. It meant a lot to me, as you could see from my celebration. I've been on the other end of that so many times. I needed that, and I deserved that."

Although Ukraine protested the result, the delegation cited no specific reason for its protest, according to AIBA.

Earlier, AIBA also sanctioned the two referees for curious decisions during Wednesday night's fights and expelled the a technical official.

A day earlier, Japan successfully protested the results of a bout that led to the expulsion of referee Ishanguly Meretnyyazov of Turkmenistan.

AIBA sent home Meretnyyazov after he allowed bantamweight Magomed Abdulhamidov of Azerbaijan to keep fighting despite falling to the canvas six times in the third round against Satoshi Shimizu of Japan. Abdulhamidov won a 22-17 decision.

Meretnyyazov further enraged the Japanese team by fixing the headgear worn by Abdulhamidov, who had to be helped from the ring after winning. AIBA overturned the result late Wednesday night, saying Meretnyyazov should have counted at least three knockdowns and stopped the bout.

AIBA also suspended German referee Frank Scharmach for five days for his handling of Iranian heavyweight Ali Mazaheri, who was disqualified from his bout with Cuba's Jose Larduet. Mazaheri received several warnings for holding from Scharmach, who finally waved off the fight midway through the second round.

The stoppage seemed quick to the booing crowd, and Mazaheri stood with his arms outstretched, eventually leaving the ring without shaking hands with Larduet or Scharmach. Mazaheri claimed the result was "a fix" and "a setup."

Scharmach is suspended through Tuesday's Olympic fights, but the disqualification stands.

The federation did not specify what Abiyev had done to earn expulsion, saying only that he had committed "a number of breaches" of its code of conduct.

International technical officials aren't referees or judges, but perform numerous duties around the ring during competition regarding everything from the draw to medical rulings and equipment management.