British number one Andy Murray was left to rue a missed opportunity as Novak Djokovic recovered from an early setback to move a step closer to the last four of the ATP World Tour Finals.
Murray began brightly at London's O2 Arena and edged the opening set, only for the top seed to restore parity in the second, meaning punters were struggling
to decide how to bet as the game headed for a deciding set.
Djokovic powered into a 4-2 lead in that decider before Murray hit...