Serbia has beaten rival Croatia to reach the Davis Cup semifinals for the first time, advancing on Novak Djokovic's 6-3, 6-3, 6-2 victory over Marin Cilic. The win Sunday gave Serbia a 3-1 lead against in the best-of-five series. Serbia will play the Czech Republic in the semifinals. Serbia took a 2-1 lead with its doubles victory on Saturday. More...