World number one Serbian tennis player Novak Djokovic was crowned champion of ATP World Tour finals at O2 Arena in London, UK on 16 November 2014. He was crowned after world number two Swiss Roger Federer withdrew from the title clash due to a back injury.
This was Djokovic's fourth season ending title. With this win, he also became the first tennis player to win three World Tour Finals titles consecutively since Ivan Lendl of US who won it from 1985 to 1987. The only other player to win three straight year-end titles was Ilie Nastase of Romania from 1971-73.
This was the third time that Federer had pulled out of the final and in his career. He pulled out of the Paris Masters before playing American James Blake in 2008 and before playing French Jo-Wilfried Tsonga in 2012 in Doha.
When: 16 November 2014