Gstaad, Switzerland -- (Sports Network) - Seventh-seeded Russian Igor Andreev and eighth-seeded Argentine Guillermo Canas were a pair of first-round winners Monday at the Swiss Open.

The 2004 Gstaad finalist Andreev got past Brazilian Marcos Daniel 6-4, 7-5, while Canas held off Czech Ivo Minar 7-6 (11-9), 6-3 on the red clay at Roy Emerson Arena.

In other opening-round play, Belgian Kristof Vliegen vaulted past Argentine Martin Vassallo Arguello 6-3, 6-4; Spaniard Guillermo Garcia-Lopez overcame Swiss wild card Michael Lammer 5-7, 6-3, 6-2; France's Florent Serra stopped Spain's Daniel Gimeno-Traver 7-6 (7-2), 7-6 (7-5); and Croat Marin Cilic handled French qualifier Josselin Ouanna 6-3, 6-4.

This week's second seed, Paul-Henri Mathieu, beat Italian Andreas Seppi in last year's finale here. Mathieu will open defense of his title against Cilic.

The 2008 Gstaad titlist will collect $102.000. The top seed here is Swiss favorite Stanislas Wawrinka.