SHANGHAI (AFP) Novak Djokovic launched his bid to conquer China for a second week running as the Beijing titleholder rolled past Ivan Ljubicic into the third round on a wet Wednesday at the Shanghai Masters. But it was heatbreak for American Andy Roddick for a second straight year as the 10th seed was forced out with a groin injury to hand a 3-6, 3-2 win to Spains Guillermo Garcia-Lopez. Another day of rainy weather disrupted the programme at the premier ATP event, but officials were at least able to finish first-round play by moving indoors to the practice courts at the Qi Zhong centre. Under the lotus-shaped moveable roof at the showcase venue, it was business as usual for world number two Djokovic, who repeated as China Open champion in the capital in a delayed Monday final an easy win over Spains David Ferrer. The 23-year-old Serb is among three players to have qualified for next months year-end event in London, leaving five spots still open and little more than a month left in the ATP regular season. With a routine 6-3, 6-3 win over Ljubicic, Djokovic improved to 7-2 over the big-serving Croatian. Beijing was one of the best tournaments Ive had in the year. Im feeling confident on the court and Im trying to keep that going, he told reporters. Im definitely satisfied with this performance, satisfied with my game, physical state, my condition. Im playing well, moving well, motivated mentally, and full of energy. Im hoping that its going to stay that way. Roddick was blasting through the contest when he tweaked his groin while moving laterally on the last point of the fourth game of the second set against Garcia-Lopez. The trainer applied heavy strapping but after one more game Roddick was forced to retire a year to the day he quit here with a left knee injury which ended his 2009 season. Two-time French Open finalist Robin Soderling, who had a bye in the first round, rebounded from an early loss in Beijing with a win over Serbias Janko Tipsarevic, 6-3, 7-6 (7/5). Fourth seed Andy Murray, who also was bounced early from the China Open, bested unheralded local favourite Bai Yan, 6-2, 6-2, but needed three match points to get the second-round job done over the world number 465. Austrias Jurgen Melzer, the 13th seed and a semi-finalist at Roland Garros this year, put out Spains Daniel Gimeno-Traver 6-3, 7-6 (7/2). Frenchman Jeremy Chardy advanced over Alexandr Dolgopolov of Ukraine, 6-1, 5-7, 6-2, while his countrymen Gael Monfils and Richard Gasquet posted first-round wins.