London: Ross Barkley set up the opening goal before scoring himself late in the game as Chelsea eased past relegation-threatened Watford in a 3-0 win to consolidate fourth place in the Premier League.
The England midfielder played in Olivier Giroud to score in the 28th minute and put Chelsea ahead at a virtually empty Stamford Bridge on Saturday.
Willian converted a penalty in the 43rd minute after Christian Pulisic was fouled to make it 2-0, before Barkley finished off a flowing team move involving Pulisic and Cesar Azpilicueta with a rasping finish high into the net in second-half stoppage time.
Chelsea bounced back from a surprising loss at West Ham in midweek with a third win in four matches since the return of the league after a three-month suspension because of the coronavirus outbreak.
Frank Lampard's Chelsea stayed a point behind third-place Leicester and two clear of fifth-place Manchester United in the race for Champions League qualification.
Fifth place will be enough to qualify for the Champions League this season if second-place Manchester City fails with its appeal to overturn a two-year European ban imposed by UEFA. The result of the appeal is imminent.