Sam Kerr scored four goals as Women's Super League leaders Chelsea thrashed West Ham 7-0 at the Chigwell Construction Stadium to reach the Continental Tyres League Cup final.
The Irons had held Arsenal to a goalless draw in their WSL match on Sunday, but were left stunned as Chelsea raced into a 3-0 lead inside the opening 22 minutes in Dagenham.
Kerr converted a free-kick at the far post to set the Blues on their way after just four minutes.
Before the home side could regroup, they fell further behind as Lauren James broke down the right and fed Fran Kirby, who raced into the penalty area and drilled a low shot into the bottom corner.