Rafael Nadal has sent Tomas Berdych out of the ATP World Tour tennis Finals in London with a victory in the final group match.
The Spaniard had already qualified for the last four but in beating Berdych 6-4 1-6 6-3 he also sent Stanislas Wawrinka through as Group A runner-up.
Wawrinka had earlier beaten already-eliminated Spaniard David Ferrer in three sets.
Nadal, who has never won the Tour's season-ending showpiece, will face Swiss six-times champion Roger Federer after he beat Argentine Juan Martin del Potro in three sets.
