(CNN) -- Croatian Marin Cilic maintained his impressive run of form this season by reaching the second round of the Dubai Championship on Tuesday.
The 21-year-old, who has lost just once all year -- to Andy Murray in the semifinals of the Australian Open -- took just 90 minutes to see off veteran Frenchman Arnaud Clement 6-2 6-4.
Sixth seed Cilic, who now faces Austrian qualifier Stefan Koubek, told the official ATP Tour web site: "I have to focus on myself to serve good and to try to play as aggressive as I can."
Fourth seed Nikolay Davydenko is also through to the next round, but the Russian did not have things all his own way in a hard-fought battle with another Frenchman, Florent Serra.
Davydenko next plays Michael Berrer, after taking over two hours to recover from the loss of the opening set to defeat Serra 6-7 6-4 6-1.
Another Frenchman to go out was Julien Benneteau, crushed 6-2 6-1 by Spain's Tommy Rodrebo in just 44 minutes, but fifth seed Jo-Wilfried Tsonga is through after opponent Michael Llodra was forced to pull out of their match because of a hamstring injury.