Chelsea lost their opening Premier League game with Lampard in charge 4-0 to Manchester United on Sunday and face Liverpool in the UEFA Super Cup on Wednesday.
Having spent much of his time at Chelsea operating in Eden Hazard's shadow, Willian has emerged as a leading light in the team ahead of their Champions League showdown with Barcelona.
'It has been good on pitch and off pitch,' Lampard said.
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Images from the English Premier League matches played on Saturday
Arrizabalaga appeared to be injured as he prevented City's Sergio Aguero from scoring in the closing moments of extra time, and manager Maurizio Sarri ordered his substitution before Chelsea went on to lose the showpiece match 4-3 on penalties.
Premier League Leeds United suffered the biggest upset of the FA Cup third round when they fell to a 3-0 defeat by fourth-tier Crawley Town on Sunday
Chelsea reacted angrily on Friday to newspaper reports that Carlo Ancelotti was set to replace manager Antonio Conte and that former coach Steve Holland has received texts from unhappy players who say they are missing him.
A late goal by substitute Charlie Austin gave relegation-threatened Southampton a thrilling 3-2 victory over Arsenal on Sunday in new Austrian manager Ralph Hasenhuettl's first home game.
Chelsea legend Frank Lampard was awarded the OBE (Order of the British Empire) from Prince William at Buckingham Palace on Tuesday.
Chelsea's 0-0 home draw with second-placed United ensured Thomas Tuchel is still undefeated in nine games since replacing Frank Lampard, but it meant they failed to dislodge fourth-placed West Ham United who became Manchester City's 20th successive victims in all competitions on Saturday.
IMAGES from soccer matches played in the EPL, La Liga and Serie A on Tuesday.
Tottenham Hotspur have the chance to exert psychological pressure on Premier League leaders Chelsea when they open the weekend programme at home to Watford on Saturday.
Liverpool's dream run was demolished in the most unlikely fashion by strugglers Watford on Saturday in what must be considered the most extraordinary reverse of the entire Premier League season. On the evening when the European champions were expected to complete the best sequence in the history of English football's top-flight with a 19th straight league victory, they were instead hammered 3-0 by the team lying one from bottom. Images from the EPL matches played on Saturday.
Third-placed Chelsea will be eager to bounce back from their 1-0 defeat by relegation-threatened West Ham United on Saturday but face a tough test against a Huddersfield side that have won four and drawn two of their eight home league games this season.
IMAGES from the Premier League matches played on Saturday
Antonio Conte said his Chelsea players were fatigued after only 30 minutes of their 1-0 loss to Manchester City.
Five Manchester City first team players have tested positive for COVID-19 and will not be involved when they play Chelsea in the Premier League this weekend
United led through Juan Mata's 11th minute strike but just before halftime the visitors were level when De Gea weakly parried an Antonio Rudiger shot into the path of Marcos Alonso.
IMAGES from EPL matches played on Wednesday
Chelsea's players must quickly adapt to new manager Maurizio Sarri's demands as the Italian looks to reshape the team for the new Premier League season
Manchester United and Chelsea secured places in the Champions League with wins on the final day of the Premier League season while Watford and Bournemouth were relegated along with bottom club Norwich City.
Chelsea's 3-0 win over Middlesbrough on Monday moved them seven points clear at the top with three games left and a win at West Brom will make them champions.
Costa, the Premier League's leading scorer with 14 goals, will miss Saturday's game following a disagreement with Chelsea manager Antonio Conte and a club fitness coach Julio Tous, the reports say.
Lionel Messi had to wait 12 years and endure a goal drought of eight games against Chelsea but he finally broke his duck in Tuesday's 1-1 Champions League last 16, first leg draw.
IMAGES from EPL match played between Manchester City and Chelsea on Sunday
Chelsea's American forward Christian Pulisic scored his first Premier League goals for the club with a hat-trick and Willian added another in an entertaining 4-2 win at Burnley.
Chelsea have completed the signing of Basel's Egyptian winger Mohamed Salah, the Premier League club said on their website on Sunday.
Two Robin van Persie goals earned the Gunners a 2-1 victory as Chelsea slid to a second home league defeat of the season.
IMAGES from the EPL matches played on Sunday
IMAGES from the EPL matches played on Sunday.
Chelsea coach Maurizio Sarri said the refusal of his goalkeeper Kepa Arrizabalaga to be substituted in Sunday's League Cup final was the result of a "big misunderstanding", adding that the Spaniard "was right but in the wrong way".
However, one goal proved enough for City who picked up their sixth successive league win to move four points clear of Liverpool, who host Aston Villa later on Saturday, at the top of the standings.
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Eden Hazard scored twice and created a third to steer Chelsea to a 4-1 victory over London rivals Arsenal in the Europa League final in what looks likely to be the Belgium winger's final game for the Blues.
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Manchester City won the English League Cup for the second successive season as the beat Chelsea 4-3 in a penalty shootout after the Wembley showpiece had ended 0-0 after extra time.
News of all that transpired on and off the football field.
Eden Hazard is enjoying life under new Chelsea manager Maurizio Sarri but says reports that he is about to announce the signing of a new deal with the London club are wide of the mark.