The Canadian team at the 2005 World Junior Ice Hockey Championships dominated the tournament, outscoring their opposition 35–6 in the games leading up to the gold medal game with Russia. Phaneuf scored a goal and threw a memorable bodycheck that knocked down two Russian players in the game as Canada routed the Russians 6–1 to win their first gold medal in eight years. He was again named a tournament All-Star, as well as being named the outstanding defenceman of the tournament.