Men’s singles resultsFederer bt Falla 6-3, 5-7, 6-3Štěpánek bt Davydenko 4-6, 1-0Soeda bt Baghdatis 7-6, 2-3Murray bt Wawrinka 6-3, 6-3Ferrer bt Pospisil 6-4, 6-4Nishikori bt Tomic 7-6, 7-6LONDON – Second seed Novak Djokovic of Serbia came back from a set down to beat Italy’s Fabio Fognini in the first round of the Olympic men’s singles.Fifth seed Jo-Wilfried Tsonga, from France, also needed three sets to beat Brazil’s Thomaz Bellucci at Wimbledon.Germany’s Julia Goerges stunned Wimbledon finalist Agnieszka Radwanska of Poland in the women’s singles.And third seed Maria Sharapova of Russia marked her Olympic debut with a 6-2 6-0 win over Israel’s Shahar Peer.Djokovic, who carried Serbia’s flag in the opening ceremony, lost a first set tie-break and also had to overcome adverse weather before winning 6-7 (7-9) 6-2 6-2."I haven’t played an official match since Wimbledon so it took me a set and a half to really get into the rhythm and obviously the rain delay affected the game and I wasn’t sharp enough after it,” he said.Frenchman Tsonga, who won 6-7 (5-7) 6-4 6-4 against Bellucci, said: "I am just happy to go through for my country. I hope I will continue like this.”Goerges, ranked 24th in the world, was delighted with her 7-5 6-7 (5-7) 6-4 victory over second seed Radwanska.