Francisco Comesana stunned Australian Open finalist and world No. 2 Alexander Zverev with a 4-6, 6-3, 6-4 win in the quarterfinals of the Rio Open for the biggest victory of his career.

Argentina's world number 86, Francisco Comesana delivered a stunning performance at the Rio Open on Friday. He defeated the Australian Open finalist and world number two Alexander Zverev 4-6, 6-3, 6-4 in the quarter-finals. This win is a major milestone in Comesana's career as it is his first-ever victory over a top-five opponent.

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The quarterfinals at the ATP Rio Open are set, and some unexpected names have emerged. This has not been a good week for the seeded players, but the top seed, Alexander Zverev and defending champion,