Updated

LONDON (Reuters) - Roger Federer turned on the style in a 6-1 6-4 defeat of Novak Djokovic on Saturday to set up a dream showdown with world number one Rafael Nadal in the final of the ATP Wold Tour Finals.

The Swiss 16-times grand slam champion cruised through the first set in little over half an hour and though Serbia's Djokovic threatened to make a match of it when he broke to lead 3-0 in the second, Federer was in an irresistible mood.

Earlier, Nadal booked his place in the final when he beat Britain's Andy Murray in a three-hour epic.

(Reporting by Martyn Herman; Editing by Pritha Sarkar)