The 22-year-old withdrew from her match against Madison Brengle while trailing 4-6 0-1 having felt a strain in her right thigh.
The start of Wimbledon is now just a week away, but Robson is confident of recovering in time to feature on home soil.
Thanks for the messages. Getting solid treatment on my leg and will be all good for @Wimbledon 🎾🇬🇧🍓— Laura Robson (@laurarobson5) June 20, 2016
Robson reached the last 16 of Wimbledon in 2013, but she has been plagued by injuries in recent years and has since plummeted to 294th in the world.