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

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.

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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,