A much-changed Chelsea side eased past Championship team London City Lionesses to reach round five of the FA Cup.
Niamh Charles slotted the opener and then whipped in a corner for Jess Carter to smash in a second before Melanie Leupolz's 35-yard effort made it 3-0 at half-time.
Drew Spence side-footed a fourth after more good work down the right from Charles and then added her second.
A comfortable night was marred by an injury to captain Magdalena Eriksson.
The two-time FA Cup winners were the overwhelming favourites in their first-ever meeting with the Lionesses, who had won just one of their previous five matches.
Blues boss Emma Hayes rested most of her international stars, and gave debuts to academy players Georgia Fox and Aggie Beever-Jones, but there was no drop in intensity as they denied their opponents a single attempt on goal before the break.
Second-half substitute Bethany England headed straight at goalkeeper Shae Yanez and Erin Cuthbert fired just over, while the Lionesses' best chance fell to Harley Bennet who headed over from an Atlanta Primus cross.
Next up for Chelsea, who are chasing a clean sweep of honours, is a potential Women's Super League title decider at Manchester City on Wednesday.
Chelsea are top of WSL and two points above second-placed City with three matches left to play.
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