match to decide of the Red Group's standings –a Murray win giving him the first place, Simon the second, a Federer win making him first, Murray second. Federer first took Murray's serve to lead 3–1, but the Briton broke back, and it took a second break by the Swiss at 5–4 to take the set. Murray was quick, with two breaks of serve, to race to a 5–2 second set lead, and was serving when Federer lined up four games to get back into the set, forcing a tie-break –which Murray eventually won, 7–3. Murray seemed to have grasp of the match at 3–0 in the third, with Federer, already diminished by an illness, calling the trainer for the back injury that had forced him out from the Paris Masters, but the Swiss fought back again, winning four straight games to lead 4–3. Unable to retain his advantage, Federer found himself led 4–5, saving seven match points on his ten-deuce-serve, before being broken, at 5–6, allowing Murray to reach the semis (vs. Davydenko) undefeated, with a 4–6, 7–6, 7–5 win, and giving Simon a semifinal spot (vs. Djokovic). Federer made his earliest exit to the tournament since 2002, when he went out in the semifinals (lost to Hewitt). Day 7 The semifinals of the Masters Cup, now in a knockout stage, took place on November 15, first opposing doubles Gold Group winners, ATP No. 2 Daniel Nestor (2007 champion, 1998 and 2006 runner-up) and Nenad Zimonjić (2005 finalist), undefeated in the event, to Red Group seconds Pablo Cuevas and Luis Horna (in their first year-end event appearance). The two teams had only met once before this match, in the French Open final, where the South Americans had upset the Canadian-Serbian pair, defeating them 6–2, 6–3 in less than an hour to win their first Grand Slam title. Nestor and Zimonjić eased through the Roland-Garros rematch, providing no break opportunities on their serve, but taking their opponents' four times, to score a 6–1, 6–3 victory in less than an hour and a half, and qualify for their first final together. Red Group top pair and current World No. 1 Bob Bryan and Mike Bryan next faced Gold Group seconds, Erlich and Ram's substitutes Mariusz Fyrstenberg and Marcin Matkowski. The semifinal was preceded by a five-match history, with the Bryans leading the head-to-head 4–1, having played in 2004 in Acapulco (won by