Nikolay Davydenko and Tommy Robredo won in straight sets Tuesday in the first round of the Warsaw Open. Top-seeded Davydenko, the 2006 champion, beat French Open doubles winner Pablo Cuevas of Uruguay 6-3, 6-2. The second-seeded Robredo, who won his second Warsaw title last year, defeated Polish wild card Michal Przysiezny 7-5, 6-2. More...