Manchester City skipper Alex Greenwood has undergone knee surgery after damaging ligaments in last week’s Champions League tie against St Polten.
The 31-year-old England defender injured her left knee following a challenge during the first half of City’s 2-0 win.
City have not revealed how long Greenwood is expected to be out of action.
A club statement read: “Manchester City can confirm that Alex Greenwood has had successful surgery on a medial collateral ligament (MCL) injury.
“Our captain was stretchered off in the Blues’ 2-0 Women’s Champions League win over St Polten at the Joie Stadium.
“The defender has since undergone a repair of her MCL and will now return to the City Football Academy to work closely with the club’s medical team.
“Everyone at Manchester City would like to wish Alex a full and speedy recovery.”
Greenwood’s team-mates Vivianne Miedema and Lauren Hemp are both recovering from knee surgery, while leading scorer Khadija Shaw is sidelined with a lower leg issue.
City are currently second in the Women’s Super League, six points behind leaders Chelsea.