Laura Robson - the British player who won junior Wimbledon at 14 and an Olympic silver medal at 18 - has confirmed her retirement from tennis.
The 28-year-old rose to 27 in the world rankings, and reached the fourth round at Wimbledon and the US Open.
But then injury intervened - she had wrist surgery in 2014, and in recent years has had three hip operations.
"I went through every possibility of rehab and of surgery," Robson told BBC Sport.
"I had another hip surgery and probably did the best rehab block of my life - I went to all the best specialists and had some incredible people that I was working with just to get me back on court - and then the second time I hit, I just knew.