Manchester City and England striker Toni Duggan will miss the rest of the 2015 season with an ankle injury.
Duggan will miss City's last three league games, while she is also out of England's Euro 2017 qualifier in Estonia on 21 September.
Daphne Corboz, 22, is also expected to miss most of the rest of this season.
The United States Under-23 midfielder has not featured in City's last three games after picking up an ankle problem in training and boss Nick Cushing says the issue had been "complicated" to diagnose.
"We'll get Corboz back for the latter stages of the season and we're really pleased with that," he told BBC Sport. "In the games she played, I thought she was really, really effective for us.
"Hopefully we'll get her on the grass and doing some pitch running at the end of September and at the beginning of October we'll get her back on the pitch."
Corboz joined City during the mid-season transfer window after turning down a place at medical school in the USA, and has scored one goal in eight appearances.
Cushing added that England right-back Lucy Bronze has recovered from her injury, despite only being an unused substitute on Sunday.
"Lucy could have played but with three games in seven days we chose to go with Abbie McManus, which shows our strength in depth," he said.
City were boosted for Sunday's victory by the return of Wales winger Natasha Harding, who had missed the previous nine games, also with an ankle injury.
They are second in WSL 1 and will move to within two points of leaders Chelsea if they beat Liverpool at home on Thursday.
The season ends with the Women's Continental Cup final, which will be held at Rotherham's New York Stadium on 1 November.