1989 Player's Canadian Open – Men's Singles

Ivan Lendl was the defending champion. Lendl successfully defended his title, defeating John McEnroe 6–1, 6–3 in the final.

1989 Player's Canadian Open – Men's Singles

Ivan Lendl was the defending champion. Lendl successfully defended his title, defeating John McEnroe 6–1, 6–3 in the final.