World number six Stefanos Tsitsipas has advanced to the last-16 of the Dubai Duty Free Tennis Championships.
The 21-year-old Greek defeated Spain’s Pablo Carreno-Busta 7-6, 6-1 to book a clash with Alexander Bublik, who beat Hubert Hurkacz 6-2, 7-5.
Meanwhile, 2018 winner Roberto Bautista Agut, former US Open champion Marin Cilic and fourth seed Fabio Fognini have crashed out of the tournament.
The fifth-seeded Bautista Agut suffered a 6-7, 5-7 defeat to Germany's Jan-Lennard Struff, while Cilic lost to Frenchman Benoit Paire 6-2, 5-7, 6-7 and Fognini went down to Britain's Dan Evans 6-3, 4-6, 5-7.
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