Novak Djokovic vows to be at his best in Wimbledon final

Novak Djokovic has insisted that he will be on top form in the Wimbledon final on Sunday after a below-par performance against Grigor Dimitrov.

The Serbian secured his place in the final, but was made to work for it by his Bulgarian opponent in a 6-4 3-6 7-6(2) 7-6(7) victory on Centre Court at the All England Club.

After this afternoon's encounter, Djokovic will play either Roger Federer or Milos Raonic for the Grand Slam title.

"Considering I have lost the last couple of Grand Slam finals, I am really looking forward to it," Djokovic told BBC Sport. "It's a big match whoever I will play in the final I will have to be at my best in the biggest match in sport."

Djokovic won the coveted title in 2011.