Former world number one Daniil Medvedev crashed out of the Dubai Championships on Thursday, squandering four match points before losing a bad-tempered quarter-final to Tallon Griekspoor of the Netherlands.

Top-seeded Daniil Medvedev of Russia survived a day of upsets at the Dubai Tennis Championships, moving to the second round after a 6-4, 7-6 (4) win over Germany's Jan-Lennard Struff.

Daniil Medvedev was defeated by Tallon Griekspoor in the Dubai Championships quarterfinals, after failing to convert four match points. Medvedev received a warning for unsportsmanlike conduct and expressed frustration to the umpire.

Tallon Griekspoor saved four match points before beating top-seeded Daniil Medvedev 2-6, 7-6 (7), 7-5 to reach the semifinals at the Dubai Championships on Thursday.

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.

Daniil Medvedev has again directed his ire towards ball speed and quality on the ATP Tour after a shock loss to Tallon Griekspoor at the Dubai Tennis Championships. 2023 Dubai champion Medvedev was beaten 2-6,

Daniil Medvedev experienced another blow in Dubai. The former champion wasted four match points versus Tallon Griekspoor in the quarter-final and fell 2-6, 7-6, 7-5 in two hours and 36 minutes! The Russian argued with the chair umpire and lost his focus in the pivotal moments to leave another tournament without lifting a trophy.