All you need to know about Andy Murray's Citi Open withdrawal


Andy Murray's most promising week since hip surgery ended with him withdrawing ahead of a scheduled quarter-final against Alex de Minaur at the Citi Open in Washington.
The three-time grand slam champion won three successive matches for the first time since last year’s Wimbledon but opted not to play a fourth.
Here are five key questions and answers about Murray...


How concerning is Murray’s withdrawal?