Mason, OH -- (Sports Network) - World No. 2 Rafael Nadal and world No. 3 Novak Djokovic won second round matches Wednesday at the $2.615 million Western & Southern Financial Group Masters tennis event.

The Spaniard Nadal dropped just one game to Frenchman Florent Serra, taking just 46 minutes to record a 6-0, 6-1 victory. It was the 30th consecutive victory for the second-seeded Nadal, who is coming off a title this past weekend in Toronto.

Meanwhile, the Serbian third seed Djokovic also won in straight sets -- but needed a tiebreak in each to do so. He beat Italian Simone Bolelli in identical sets, 7-6 (7-2), 7-6 (7-2).

In his third-round match, Nadal will face German Tommy Haas, who was leading Gael Monfils 5-1 when the Frenchman retired due to a stomach illness. Djokovic will take on Italian Andreas Seppi, who beat the Czech Republic's Tomas Berdych 5-7, 7-5, 7-5.

The day's action was scheduled to conclude with a match between fourth-seeded Russian Nikolay Davydenko and Spaniard Carlos Moya. But rain suspended play for the night with Moya ahead 7-6 (10-8), 1-0.

Last year's Cincinnati runner-up James Blake was a routine winner, while Tennis Masters Cup finalist David Ferrer suffered a second-round setback.

The seventh-seeded Blake dropped France's Gilles Simon 6-4, 6-3 on the hardcourts at Lindner Family Tennis Center. Simon shocked world No. 1 Roger Federer in the second round at last week's Masters Series event in Toronto.

Blake, who succumbed to Federer in last year's Cincinnati finale, could have his hands full with rising 19-year-old Latvian Ernests Gulbis in the third round Thursday. The French Open quarterfinalist Gulbis drove out Wimbledon quarterfinalist Arnaud Clement of France, 6-4, 3-6, 7-6 (7-5). The lucky-loser Clement entered the draw as a wild card this week when ninth-seeded Swiss Stanislas Wawrinka pulled out with a right knee injury.

The fifth-seeded Ferrer was upended by Ecuadorian veteran Nicolas Lapentti 7-6 (7-2), 3-6, 6-3, while eighth-seeded Brit Andy Murray avoided an upset by handling American Sam Querrey 7-6 (7-3), 6-1.

Among other seeded players to advance was No. 10 Fernando Verdasco. The Spaniard needed a pair of tiebreaks to beat qualifying Australian Chris Guccione 7-6 (7-4), 7-6 (7-4). Additionally, 11th-seeded Frenchman Richard Gasquet fell out of the tournament after losing to Russian Dmitry Tursunov 7-6 (10-8), 6-0.

Tursunov's countryman Igor Andreev advanced with a come-from-behind win over American wild card John Isner. Andreev fought off two match points to win 3-6, 7-6 (10-8), 7-5.

The 2008 titlist here will pocket $420,000.