Top seed Kei Nishikori has crashed out of the Dubai Duty Free Tennis Championships.
The world number six from Japan went down in three sets to Poland's Hubert Hurkacz 5-7, 7-5, 2-6.
Elsewhere, Lithuania's Ričardas Berankis beat American Denis Kudla 6-4, 6-1.
Seven-time winner Roger Federer is in action later on Wednesday.
The Swiss star takes on Spain's Fernando Verdasco on Centre Court after 7 PM.

Daniil Medvedev handed Dubai title after Griekspoor withdrawal
England beat New Zealand to keep Pakistan's T20 World Cup hopes alive
Medvedev to face Griekspoor in bid for second Dubai title
Real Madrid face Man City again in Champions League knockouts
India defeat Zimbabwe to revive T20 World Cup hopes