Andy Murray made his comeback from a nearly five months injury layoff, losing a one-set match to Spain’s Roberto Bautista Agut in the Mubadala World Tennis Championship. The former world number one, winner of three Grand Slam titles, lost 6-2 after filling in for Novak Djokovic, who was a late withdrawal Friday after a recurrence of pain in his right elbow. Murray, 30, was last seen in action in his loss to Sam Querrey in Wimbledon and then ended his season after that to recover from a niggling hip injury. Murray moved gingerly on the court and clearly showed the rust, although he never clutched his back or displayed any overt signs of still carrying the injury. He was more competitive towards the end, the highlight being a 12 minute 15 second battle to hold his serve at 1-5 down.