Ryuju Nagayama's run for gold at the Paris Olympics ended in controversial fashion on Saturday.

Nagayama lost to Spain's Francisco Garrigos in the quarterfinal round of the men's under-60 kg competition, and expressed his frustration and disbelief at the result by refusing to leave the mat at Champ de Mars Arena.

He later regrouped to win the repechage and third-place match to earn a bronze medal.