Freya Kemp, the 17-year-old allrounder who made her England debut in the summer, has been ruled out of the rest of the ongoing tour to the Caribbean.
Kemp was not involved in any of the three ODIs during England's 3-0 clean sweep of the West Indies and has been suffering with back pain.
"England Women's all-rounder Freya Kemp has been ruled out of the rest of the West Indies series with back pain limiting her cricket," an ECB statement said.
"Kemp will now return to the UK for further exploratory scans."
She is the latest player ruled out of the tour through injury after Alice Capsey returned home with a broken collarbone.
England and West Indies play the first of five T20Is in Antigua on Sunday night. The final four games take place in Barbados from December 14-22.