Britain's Andy Murray has withdrawn from the men's singles at Wimbledon, although he is still set to play in the doubles with his brother Jamie.
Murray, who is planning to retire later this year, had surgery 10 days ago on a back issue.
The 37-year-old, who won Wimbledon in 2013 and 2016, was due to play Tomas Machac of the Czech Republic on Centre Court on Tuesday.
Murray had to retire from his match against Australia's Jordan Thompson at Queen's on 19 June because of a back issue.