Chelsea won 4-1 away to West Ham United to cut Arsenal’s lead in the Barclays FA Women’s Super League to five points with two games still in hand.
Pernille Harder headed against the post from a corner in the opening seconds and found the net on 20 minutes with a curling shot into the bottom corner.
Niamh Charles took little time to double the advantage with a half-volley from the edge of the area.
Tameka Yallop went close for the Hammers from distance, Zećira Mušović turning the shit round the post.
But it was 3-0 to Chelsea soon after the half-hour, Ji So-yun’s perfect ball into the box headed past keeper Mackenzie Arnold for Harder’s second of the night.
Mušović blocked a Claudia Walker chance at point-blank range and Kateřina Svitková put a free header wide before the break.
Dagny Brynjarsdottir did pulled a goal back just after the restart but Sam Kerr restored the three-goal cushion 15 minutes later.