Andy Roddick hit a shot not found in any how-to manual, and it came at a critical time to help him survive a scare Saturday in his opening match at the Sony Ericsson Open. The sixth-seeded Roddick beat qualifier Viktor Troicki 5-7, 6-2, 6-4. With Troicki serving at 4-5 in the final game, Roddick's creativity helped him win the first point. A rally forced him to the sideline near the net, and when Troicki sliced a volley to the other side, Roddick chased down the ball as it bounced away from him, then spun to yank a backhand crosscourt past the Serbian. The ball landed on the sideline, but Roddick wasn't sure the shot was good until the crowd erupted with a standing ovation. Five points later Troicki pushed a backhand wide, and Roddick had his victory. Top-ranked Roger Federer won with less drama. Still seeking his first title this year, he erased all seven break points he faced and beat Gael Monfils 6-3, 6-4. Eight seeded men lost, including No. 5 David Ferrer, No. 13 Andy Murray and No. 21 Lleyton Hewitt. Ferrer, a two-time semifinalist, was beaten by Thomas Johansson 6-4, 7-5. Murray, a semifinalist last year, lost to Mario Ancic 6-2, 2-6, 7-6 (7). Hewitt was eliminated by Jose Acasuso 6-3, 7-6 (4). On the women's side, Lindsay Davenport played at Key Biscayne for the first time in five years and needed only an hour to eliminate Camille Pin 6-2, 6-1. Second-seeded Ana Ivanovic beat Emelie Loit 6-1, 6-2 and advanced to a third-round match Sunday against Davenport. It will be the first meeting between Ivanovic, 20, and Davenport, 31. The final match of the second round ended after midnight, and No. 4-seeded Jelena Jankovic rallied to beat Sofia Arvidsson 6-7 (7), 6-2, 7-6 (9). In the third set, Jankovic overcame a 5-1 deficit, then saved five match points in the tiebreaker. No. 5 Anna Chakvetadze reached the third round by beating Tamira Paszek 6-3, 6-2. No. 7 Daniela Hantuchova and No. 10 Elena Dementieva also won. Seeded players had first-round byes. No. 12 Nicole Vaidisova lost to qualifier Alisa Kleybanova 6-4, 6-0. No. 14 Nadia Petrova retired in the first set against Zheng Jie because of strained thigh. __
