Sumo wrestler Takanoiwa on Thursday filed a lawsuit seeking 24 million yen ($209,900) in damages from former grand champion Harumafuji, claiming the Mongolian's assault last year forced him to miss matches due to injuries and caused him financial losses.

The former yokozuna faced a summary indictment in December for assaulting the lower-ranked compatriot wrestler with a remote controller at a lounge bar in the city of Tottori on Oct. 26, causing injuries which took 12 days to heal.

The civil lawsuit was filed just days after then-Harumafuji held a retirement ceremony. It also came after Takanohana, the master of the stable Takanoiwa belonged to, left the Japan Sumo Association, saying he could not accept the organization's conclusion that his complaint over its handling of the assault was groundless.

Takanoiwa and the former yokozuna first held talks concerning an out-of-court settlement late last year, but failed to reach agreement. They tried again to settle at a summary court in August, but that effort too failed.

"Takanoiwa even considered his retirement at an initial stage," said Toshiji Sato, his lawyer.

Harumafuji had proposed paying 300,000 yen to 500,000 yen during the talks, according to the lawyer.

A lawyer for the former yokozuna, Tsugio Yada, declined to comment on the lawsuit, saying he has yet to go through the legal documents.