Serbia force Davis Cup final decider

Serbia have taken the Davis Cup final against the Czech Republic to a deciding rubber thanks to Novak Djokovic's straight-sets win over Tomas Berdych.

The two nations are now tied at 2-2 in the five-match series in Belgrade as the Czechs look to defend their title.

Djokovic came through against Berdych 6-4 7-6(5) 6-2 on Sunday with nearly three hours on the clock.

The final will now be decided in a decisive rubber later today as Serbian youngster Dusan Lajovic takes on experienced Czech Radek Stepanek.