claim: Probot played rock.
evidence: Viktor Alexandrovich Sidyak -LRB- Виктор Александрович Сидяк born 24 November 1943 -RRB- is a retired left-handed sabre fencer from Russia , a pupil of Mark Rakita and David Tyshler .. Russia. Russia. sabre fencer. sabre ( fencing ). Mark Rakita. Mark Rakita. David Tyshler. David Tyshler. He was known for his aggressive style and the `` one-and-a-half tempo attack '' .