London, Nov 13 (ANI): Current world number one, Novak Djokovic has said he had given his all in every match in the ATP World Tour Finals in London and after beating Swiss world number two, Roger Federer in the final, the Serb dedicated the victory to his ailing father. Srdjan Djokovic was absent from his normal courtside position but he was not out of mind as Djokovic won his first title at the ATP’s blue riband event since 2008 in Shanghai. The Serb ground down Federer in brutal fashion at London’s O2 Arena winning 7-6 7-5 in two hours 14 minutes and the world number one revealed it was a satisfying victory.
