World tennis No.2 Roger Federer's set up the end of year final the fans wanted to see, booking a decider against world No.1 Rafael Nadal at the ATP World Tour Finals.
London's O2 Arena will see the Swiss ace take on the Spaniard after Federer saw off Serbian third seed Novak Djokovic 6-1 6-4 in the semi-finals.
Nadal beat fifth-seeded Scot Andy Murray 7-6 3-6 7-6 en route to the final, the first time the Mallorcan's made it this far at the elite year-end tournament.
