Davydenko advances at rainy French Open

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PARIS, May 28 (UPI) -- Fourth-seeded Russian Nikolay Davydenko was an easy first-round winner Monday at a rainy French Open.

Twenty-eight men's opening-round matches were either suspended or postponed because of rain, including one involving world No. 1 Roger Federer.

Rain also disrupted Sunday's opening-day schedule.

Davydenko defeated Italian Stefano Galvani, 6-3, 6-1, 6-1, in 90 minutes. The Russian star broke serve seven times.

Federer -- the top-seed and 2006 French Open runner-up -- was leading American Michael Russell, 6-4, 4-1, when their match was suspended until Tuesday.

Federer is the reigning Wimbledon, U.S. Open and Australian Open champion. He needs a French Open title to complete a career Grand Slam.

Rain is in the forecast for Tuesday.