Tennis: Federer fails to advance

Roger Federer has failed to book a date with Novak Djokovic in the final of the Dubai Open.

He lost to recent nemesis Tomas Berdych 3-6 7-6 6-4 in the semi-finals.

Earlier, Djokovic booked his spot with a 6-3 7-6 win over Juan Martin del Potro.