In-form Sam Kerr completed a first-half hat-trick as Chelsea outclassed struggling Birmingham City 6-0 at Kingsmeadow.
The Blues had to wait until the 25th minute to break the deadlock, when Erin Cuthbert struck an angled drive that forced Hannah Hampton to produce a save only for Kerr to convert the rebound with a close-range effort.
On the stroke of half-time Chelsea doubled their lead through Australia international Kerr, who reacted quickly to bundle a header past Hampton.
Pernille Harder's header struck the post but Chelsea claimed their third goal after Cuthbert whipped a wonderful cross that found Kerr, whose header at the far post completed her hat-trick.