Top seeds Novak Djokovic and Rafael Nadal cruised into the Qatar ExxonMobil Open quarter-finals on Wednesday.
World number one Djokovic needed just 69 minutes to dispatch Spaniard Fernando Verdasco 6-2, 6-2, breaking twice in the first set and twice more in the second.
The Serbian is bidding for his 60th tour-level title this week.
Awaiting him in the last eight is Leonardo Mayer, who defeated Pablo Andujar 6-2 6-4.
Nadal was similarly dominant in his 6-3, 6-2 victory over Robin Haase, wrapping up the result in 67 minutes.
“I played at a very high level against a good opponent today,” Nadal said. “My serve was a little bit worse than yesterday, but in general I am happy with the victory and my level of tennis. I hit my returns with a lot of confidence.”
Nadal moves on to face Andrey Kuznetsov, who topped Ricardas Berankis 7-6 (8-6), 6-1.
“Kuznetsov is an aggressive player,” Nadal added. “I played against him at Roland Garros a couple of years ago, and he made some great shots. I hope I’ll be able to play at the same level as today.”
Third seed Tomas Berdych also advanced, 6-0 6-4 over Damir Dzumhur, while seventh seed Jeremy Chardy lost just five service points as he beat fellow Frenchman Paul-Henri Mathieu 6-2, 6-4.
There were also wins for Kyle Edmund and Illya Marchenko.