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.

Alexander Zverev (No. 2 ranking) will face Francisco Comesana (No. 86) in the quarterfinals at the Rio Open presented by Claro on Friday, February 21.In his most recent match on Wednesday, Zverev

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.

World no. 86 Francisco Comesana will compete in his first ATP semi-final at the ATP 500 tournament in Rio. The Argentine scored his career-best victory in the quarter-final, stunning world no. 2 Alexander Zverev 4-6, 6-3, 6-4 in two hours and 31 minutes.

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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,