Two-time Wimbledon champion Andy Murray admits there are question marks about whether his body will hold up as he prepares to return to competitive action at Queen's Club.
Murray has struggled to return to his former level since having hip-resurfacing surgery in January 2019 with niggling injuries limiting his tournament time.
He missed this year's Australian Open after testing positive for COVID-19 and has not played a match since March but is back for the grass-court swing leading into Wimbledon.