Tallon Griekspoor saved four match points in upsetting top seed Daniil Medvedev 2-6, 7-6 (7), 7-5 in the quarterfinals at the Dubai Tennis Championships on Thursday. The Dutchman advanced to his eighth career ATP Tour semifinal (3-4 record) in knocking off Russia's Medvedev,

Top-seed Daniil Medvedev was stunned by Tallon Griekspoor at the Dubai Tennis Championship on Thursday as the world number 47 recorded the biggest win of his career.

The ATP Dubai Duty Free Tennis Championships have been rather unpredictable this year, but there’s definitely been no shortage of quality tennis. Quentin Halys is playing his first ATP 500 semifinal and will come up against the only 2-time ATP Tour champion this year,

Stefanos Tsitsipas is now within one win from returning to the world’s top 10, after he reached his third Dubai final. The Greek defeated Tallon Griekspoor 6-4, 6-4 in the semifinals of the ATP 500 event in Dubai,