Andy Murray beats Tomas Berdych in opener of ATP World Tour Finals 3 Andy Murray dropped his serve just once Monday in a three-set win in the opening match of the Barclays ATP World Tour Finals in London. Murray beat fifth-seeded Tomas Berdych 3-6, 6-3, 6-4 over 2 hours, 16 minutes for an early lead in Group A round-robin play. Novak Djokovic, who officially became the top-ranked player in the world Monday, was to meet seventh-seeded Jo-Wilfried Tsonga in another Group A match later in the day. Murray lost only six points on serve in the first set but Berdych, who fought off seven break points in the set, grouped four of them in the sixth game for a break. Murray evened the match with a break in the fourth game of the second set. The third set again turned on one break as Murray took the advantage in the third game and dropped one point on serve the rest of the way for the win. Group B play is to begin Tuesday, with defending champion Roger Federer, now second in the world rankings, going against eighth-seeded Janko Tipsarevic and fourth-seeded David Ferrer playing Juan Martin del Potro, the sixth seed.