内容摘要：Prosecutors said Monday they were questioning a South Korean mixed martial arts fighter over an alle

Prosecutors said Monday they were questioning a South Korean mixed martial arts fighter over an alleged fraud.

Choi Hong-man showed up at the Seoul Eastern District Prosecutor's Office on Monday evening, six days after a court issued a warrant to arrest him, prosecutors said.

Choi had refused to comply with prosecutors' repeated demands that he appear for questioning over the allegation that he did not pay back HK$710,000 (US$91,600) to an acquaintance of his.

Prosecutors said Choi borrowed the money from his acquaintance in Hong Kong in 2013 to buy watches for him and his girlfriend.

Choi was a former champion of "ssirum" -- a traditional Korean form of wrestling. In 2004, he made a splash by switching from the embattled sport of ssirum to the K-1 mixed martial arts league. (Yonhap)