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.

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.

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

Australian Open finalist Alexander Zverev wasted a big third-set lead as he suffered a second straight quarter-final defeat in South America, 4-6, 6-3, 6-4 against Argentine Francisco Comesana in Rio de Janeiro.

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

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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,