GSTAAD, Switzerland -- Former finalist Igor Andreev beat Marcos Daniel of Brazil 6-4, 7-5 in his opening match at the Swiss Open on Monday.
Andreev, the 2004 runner-up back as the seventh seed, broke Daniel once in each set.
The only other seed in action, No. 8 Guillermo Canas, overcame Ivo Minar of the Czech Republic 7-6 (9), 6-3.
Canas lined up a second-round match with Kristof Vliegen of Belgium, who defeated Martin Vassallo Arguello of Argentina 6-3, 6-4.
The tournament top seed was world No. 10 and local star Stanislas Wawrinka, who will face fellow Swiss Robin Roshardt or Stephane Bohli, who meet on Tuesday.
Other first-round winners included Marin Cilic of Croatia, Florent Serra of France, and Guillermo Garcia-Lopez of Spain.
