West Ham 1-4 Chelsea: Blues close in on leaders Arsenal with win
On a tumultuous day for Chelsea, they cruised to a commanding win over West Ham and closed the gap on league leaders Arsenal to five points.
Manager Emma Hayes spoke of a «difficult day» after Roman Abramovich's attempt to sell the club was halted by government sanctions.
Pernille Harder scored twice with Niamh Charles and Sam Kerr also on target.
Dagny Brynjarsdottir's second-half goal for West Ham was not enough to trouble the champions.
Before the match, Hayes said that she hoped her players would be able to «switch off» for 90 minutes and forget about what has undoubtedly been a tough day for the London club.
Chelsea were all over West Ham from the first whistle and Harder's 14th goal of the season came after 20 minutes to reward the Blues' pressure.
Charles' long-range shot took a wicked deflection off West Ham captain Gilly Flaherty just three minutes later before Ji's sublime floated ball into the box was nodded home by Harder.
West Ham had their chances — Katerina Svitkova should have scored from a header while West Ham's top goalscorer Claudia Walker also came close — but the damage had already been done.
Kerr silenced West Ham's hopes of a comeback with a clinical right-footed finish, Chelsea's only shot on target in the second half, after Brynjarsdottir had pulled one back for West Ham just after the break.
The victory takes the Blues, who were beaten in the Continental Cup final by Manchester City, to within five points of Arsenal with two games in hand and ends West Ham's 10-game unbeaten run at home.
Formation 3-5-2
Formation 4-4-2
Match ends, West Ham United Women 1, Chelsea Women 4.
Second Half ends, West Ham United Women 1, Chelsea Women 4.
Foul by Drew Spence (Chelsea Women).
Dagny Brynjarsdóttir (West Ham United