The unexpected line up of the second match of the day opposed top Roger Federer to Roddick's replacement, ninth-seeded Radek Štěpánek, for the fourth time in the year, after a Rome quarterfinal (won by Štěpánek), a US Open third round (won by Federer), and a Madrid second round (won by Federer). The Swiss broke in the opening game of the match, and led 2–1 when Štěpánek broke back to 2–2. Both players held their serve to a tie-break Federer eventually took 7–4, capitalizing on Štěpánek's unforced errors. Federer and Štěpánek continued to serve strongly in the second set, before the Swiss took the advantage at 4–3, to lead 5–3 and serve for the set. Štěpánek managed to break back one last time, but Federer took the Czech's serve again to close the match 7–6, 6–4, in less than two hours, already crushing Štěpánek's slim chances to leave the round robin, and allowing Murray to secure a semifinal berth. Day 5 The final matches of the doubles' Red Group, on November 13, opposed, in a dead rubber, top-seeded Bob and Mike Bryan, already qualified for the semifinals, and Jeff Coetzee and Wesley Moodie, already assured of ending fourth of the group. The two first sets went on similarly, with the South Africans breaking twice in the first to win it 6–2, and the Americans doing the same in the second to level the score. Coetzee and Moodie managed to take the close deciding tie-break, improving their head-to-head against the Bryans to 2–2 by scoring a 6–2, 2–6, [12–10], victory over them. The second, crucial match, for a semifinal spot, saw Pablo Cuevas and Luis Horna face for the first time Mark Knowles (defending champion) and Mahesh Bhupathi (three-time runner-up). Both teams served strongly, converting none of their breaks points in the first set, and providing none in the second. Bhupathi and Knowles took the first tie-break 7–3, Cuevas and Horna the second 7–4, before the latter extended their second set domination to a 6–7, 7–6, [10–5] victory, eliminating Bhupathi and Knowles, and setting a semifinal clash with Nestor and Zimonjić –which they had beaten in the French Open final. The last two matches of the singles' Gold Group took place, with the first, also a dead rubber, opposing Novak Djokovic (already qualified) to Jo-Wilfried Tsonga (already eliminated) for the third time since the Serb won their Australian Open final. Djokovic easily