Mark Petchey, who once coached Andy Murray and now commentates for Sky Sport, says the Scot’s comeback from back surgery cannot be compared to world No. 1 Rafael Nadal’s comeback from knee trouble last season.

“Nadal showed last year that if you get your confidence back then great things can happen,” Petchey said. “However, people need to be realistic. There will always be people comparing his comeback to Nadal’s return last season but you need to keep it in perspective. Rafa came back straight onto his favorite surface of clay and he had a long build-up to the French Open. In contrast, Andy picked a harder route—the Australian Open is his toughest surface—but he’ll be happy for the most part from his efforts Down Under...

"Andy now has two main career goals—to win the two remaining majors and reach world No. 1. He’ll know he needs to win the upcoming Masters events in Indian Wells and Miami to stand a chance of reaching the summit this year. He has really got to target those two U.S. events.”