Mason Mount capitalised on mistakes from Tyrone Mings and Emiliano Martinez to give Chelsea a 2-0 win over hapless Aston Villa and increase the pressure on boss Steven Gerrard.
Graham Potter has now won all three of his Premier League matches, but he had goalkeeper Kepa Arrizabalaga to thank as much as anyone for delivering a "world-class performance" at Villa Park to keep the hosts at bay in the first half.
Villa deserved more from their performance although they constructed their own downfall when Mings' terrible header allowed Mount to put Chelsea ahead in just the sixth minute.
Martinez later misjudged the midfielder's swerving free-kick from 25 yards to compound Villa's joyless start to the season which has seen them win just twice in the Premier League.
