|Anime debut||Yu-Gi-Oh! episode 186: "Unwanted Guest - Part 2"|
Sergei Ivanoff is a Russian Duelist and a big, muscular strong man who is dressed like a heavyweight champion. He loses to Ethan Shark in Round 1 of the Grand Championship tournament. Roland called him "the Siberian Muscle"
No cards in this Duelist's Deck were shown.
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