Former world number one Novak Djokovic says overcoming the mental challenge will be Andy Murray's biggest obstacle when he returns to tennis after a long-term hip injury.
Britain's former world number one Andy Murray will make his return from hip surgery at the Queen's Club tournament next week where he will face Australia's Nick Kyrgios in the first round.
Former world number one Andy Murray believes winning more Grand Slam titles is "still possible" as he prepares to come back after almost a year out with a hip injury.
