Geneva, Switzerland (SportsNetwork.com) - Fifth seed Andreas Haider-Maurer was among Monday's first-round upset victims at the Geneva Open, a final clay- court French Open tune-up.

Russian qualifier Andrey Kuznetsov doused the Austrian Haider-Maurer 6-2, 6-4 at Geneva Tennis Club, while another upset came when Brazilian Thomaz Bellucci tackled seventh-seeded Cypriot Marcos Baghdatis 6-7 (5-7), 6-3, 6-3.

Additional upsets were avoided when sixth-seeded Portuguese Joao Sousa handled Brazil's Joao Souza 7-5, 6-3 and eighth-seeded Russian veteran Mikhail Youzhny topped German Jan-Lennard Struff 7-6 (7-2), 7-6 (7-5).

Other Day-2 winners were Spaniard Albert Ramos-Vinolas and Austria's Jurgen Melzer.

On Tuesday, second-seeded U.S. Open champion Marin Cilic will open his week against Russian wild card Andrey Rublev in the second round.

The top seed this week is Swiss favorite Stan Wawrinka.