Novak Djokovic doesn't agree with Andy Murray's notion that the courts at Wimbledon are "not easy to move on". The Wimbledon courts have seen a number of players slipping over this week, with a few players being forced to retire from their match as a result.
Adrian Mannarino fell and suffered a knee injury in his tie against Roger Federer on Tuesday while Serena Williams injured her ankle against Aliaksandra Sasnovich.
John Isner, Nick Kyrgios, Murray and Djokovic have also fallen over on the grass courts this week. And Murray took to social media on Wednesday night to take aim at the court conditions at Wimbledon following Williams' withdrawal from the tournament.
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