Manchester United stayed top of the table and dealt a blow to Arsenal's WSL title chances after Alessia Russo ’s goal secured all three points.
United did the double over their championship rivals, but a tight contest was overshadowed by a potentially serious injury to England skipper Leah Williamson, with the World Cup finals less than 100 days away. In the early stages, Williamson went down after her knee jolted when turning for a loose ball and limped down the tunnel, later spotted on crutches.
Russo, subject of a record bid from Arsenal in the January transfer window, made the Gunners pay when slotting home with the final moment of an otherwise quiet first-half. The England forward given a simple finish after Maya Le Tissier and Nikita Parris combined down the right wing.