The 24-year-old has been in fine goalscoring form this season and dispatched the winner in last month’s second-city derby win over Aston Villa. Her second-half strike was the only goal in a game played at Villa Park which finished 1-0 to Blues.
She also found the net for Carla Ward’s side when they were narrowly beaten at home to West Ham United earlier in the month.
Prior to that, Walker had scored in all of her team’s league victories this season – including a 4-0 away win over Bristol City.
The former England U23’s forward has netted five goals in eight FA Women’s Super League appearances this season.
Blues currently sit 7th in the FAWSL table with nine points on the board.