Reading Women midfielder Fara Williams is out for the rest of the season after having surgery on a thigh injury.
The 36-year-old made 19 appearances in 2019-20.
Williams, who has 171 caps for England, is expected to return in time for pre-season.
Meanwhile, defender Jo Potter, 35, and striker Lauren Bruton, 27, are expected to feature before the end of the season after ankle and Achilles injuries respectively.