Chelsea are one win from a return to the Champions League after a comfortable 3-0 victory at home to Watford.
The Blues were disappointing in the first half and were booed off, but it was a different story after the break.
Ruben Loftus-Cheek headed Chelsea in front in the 48th minute, nodding home an Eden Hazard cross from a corner routine.
And three minutes later the home side had a second, this time David Luiz scoring with a header direct from a Hazard corner.
The third came in the 75th minute as Pedro slid in Gonzalo Higuain, and the Argentine coolly dinked a finish over the onrushing Ben Foster.
Maurizio Sarri takes his side to Leicester City next Sunday and three points will guarantee a return to European football’s elite competition.