After relentlessly running each other all over the court for more than three hours in a match that flip-flopped throughout, Rafael Nadal got the breaks he needed Saturday to beat Andy Murray 7-6 (5), 3-6, 7-6 (6). The top-ranked Spaniard, however, had to overcome a mid-match slump to reach his first final at the ATP World Tour Finals, where he will face 16-time major champion Roger Federer.