World No . six Novak Djokovic beats third -ranked Murray at ATP Tour . Serbian wins his third successive match to move closer to a semifinal place . It was the sort of match that has helped bring in 250,000 people each year to London 's O2 Arena . ` Murray needs to win his third and final match on Friday to go through in London . The tournament will stay in UK capital for Friday after extending deal .
World No . six Novak Djokovic beats third -ranked Murray at ATP Tour . Serbian wins his third successive match to move closer to a semifinal place . Murray needs to win his third and final match on Friday to go through in London . The tournament will stay in UK capital for Friday after extending deal .