Federer, Roddick post Day-4 wins in Shanghai

Shanghai, China (Sports Network) - World No. 1 Swiss Roger Federer and former top-ranked American star Andy Roddick were Wednesday's Red Group round- robin winners at the exclusive $3.7 million Tennis Masters Cup. Roddick has already clinched a berth in Saturday's semifinals here.
The top-seeded Federer rebounded from a Monday loss against Fernando Gonzalez by whipping fourth-seeded Russian Nikolay Davydenko 6-4, 6-3, while a fifth- seeded Roddick improved to 2-0 this week by handling a seventh-seeded Gonzalez 6-1, 6-4 on the hardcourt at Qi Zhong Stadium. Roddick moved to 7-3 lifetime versus the Australian Open runner-up Gonzalez.
Federer got past Davydenko in 1 hour, 26 minutes with the help of four service breaks, compared to two for the Russian, while Roddick doused "Gonzo" in 1 hour, 5 minutes by winning 21 more points (59-38) than his Chilean counterpart. The massive-serving American, who fired only four aces in the big win, also broke Gonzalez three times, while the Chilean failed to record one break in the setback.
The amazing Federer is now 16-1 all-time in his Masters Cup round-robin matches and 11-0 lifetime versus Davydenko, who succumbed to the super Swiss in this year's U.S. and French Open semifinals...Full Story