LONDON (AP) -- With her left thigh injured and heavily taped, Madison Keys showed up at Wimbledon on Monday morning determined to play.
But the 19-year-old American could barely move when she tested out her leg in practice and was forced to pull out from her uncompleted third-round match against Yaroslava Shvedova.
''I came in this morning and I had lots of tape on and I tried,'' the 30th-ranked Keys said. ''I had so much tape on me I could barely walk. It just wasn't happening.''
Keys picked up the injury on Saturday when her match with Shvedova was suspended by darkness. They were due to resume play on Monday, with the Kazakhstan player leading 7-6 (7), 6-6.
Keys has been advised to rest for two weeks before she can resume training.
Keys, the youngest player in top 50, won her first tour title at the Eastbourne grass-court Wimbledon warm-up.
''Really happy that I was able to title last week,'' she said. ''I've just got to learn from the things that happened, the good and the bad, just try to use it for the hard courts. Just have to go and get ready for the US Open Series.''
Shvedova will next face the winner of the match between Ana Ivanovic and Sabine Lisicki.
