Montpellier, France –  Sixth-seeded Florian Mayer and former five star Nikolay Davydenko were among Monday's first-round winners at the Open Sud de France tennis event.

The German Mayer got past Luxembourg's Gilles Muller 7-6 (7-3), 6-3, while the unseeded wild card Davydenko, of Russia, drubbed France's Stephane Robert 6-2, 6-1 on the indoor hardcourt at The Arena. Davydenko will face sweet-swinging French favorite Richard Gasquet in the second round.

One other Day-1 winner was French wild card Guillaume Rufin.

This week's top seeds are Czech Tomas Berdych and French stars Gilles Simon, Gael Monfils and Gasquet, all of whom received opening-round byes. Monfils titled here two years ago.

The winner of this $518,000 tournament will collect $95,000.