MOSCOW -- Russian opposition leader and chess grandmaster Garry Kasparov has been called for questioning after a police officer accused him of biting his hand while he was being detained at a protest in support of Pussy Riot.
Kasparov, the former world chess champion and anti-Vladimir Putin activist, denies the claims.
Kasparov was detained on Friday as he was rallying in support of the feminist punk band outside the Moscow court where members were sentenced to two years in prison.
Kasparov says he's planning to file a complaint against his detention and a libel case against his accuser.
Kasparov said outside police headquarters after questioning Monday that he submitted videos of his arrest that prove his innocence "beyond a reasonable doubt."