Frank Lampard has demanded his Chelsea side improve for the final sprint for the top four.
Christian Pulisic and Olivier Giroud scored two quickfire second-half goals as the Blues hit back at Aston Villa to clinch a crucial 2-1 win on Sunday.
Third-placed Leicester and Manchester United dropped points at Watford and Tottenham respectively with Chelsea now five points ahead of United in fifth and Wolves in sixth.
Victory at Villa, after they fell behind to Kortney Hause's opener, tightened Chelsea's grip on fourth but Lampard wants more.