After making adjustments to his service motion, former world number one Andy Murray is confident that his game is on an upward trajectory and he can compete against top players again after struggling with injuries in the past few years. The 34-year-old Briton, who had hip surgeries in 2018 and 2019, has not been able to reprise the consistent form that helped him win three major titles and two Olympic singles gold in London 2012 and four years later in Rio de Janeiro. Murray, who has slipped to 113th in the men’s rankings, defeated Frenchman Ugo Humbert 4–6 6–3 6–2 on Tuesday at the Moselle Open in Metz, France. “I don’t think I’ve played that well recently, but my body has been good and even not playing my best, I’ve created opportunities to win sets against a number of top players,” Murray said after his win over the world number …