Jorginho's first-half penalty earned Chelsea a 1-0 victory over Tottenham Hotspur in the Premier League on Thursday.
Chelsea manager Frank Lampard was delighted with the discipline of his team, who ended United's 19-game unbeaten run.
Gerard Moreno -- who scored against Manchester United before the Europa League final in Gdansk went to penalties -- rescued Unai Emery's side in the 73rd with a side-foot finish after a back-heel from Boulaye Dia.
IMAGES from the EPL matches played on Sunday.
Here are some of the other events -- in pictures -- that made news last week.
Diego Costa scored twice but could not prevent Chelsea losing their 100 percent Premier League record in a controversial 2-2 draw at Swansea on Sunday.
Atletico Madrid produced an inspired display of counter-attacking football to beat Chelsea 3-1 in the UEFA Champions League semi-final second leg in London on Wednesday and set up an all-Spanish final against city rivals Real.
Watford equalised seconds before halftime through Abdoulaye Doucoure and in a rampant spell of attacking football went ahead four minutes after the break when Roberto Pereyra tapped home a Richarlison cross.
Headed goals from Anthony Martial and captain Harry Maguire earned Manchester United a hard-fought 2-0 win at toothless Chelsea on Monday amid more VAR controversy, putting them back in the hunt for a top-four Premier League finish. The VAR system made the headlines once again after two Chelsea efforts were ruled out and England international Maguire escaped sanction for a kick out at Michy Batshuayi.
Chelsea moved within three points of clinching the Premier League title with a 3-0 victory that condemned Middlesbrough to relegation on Monday after goals from Spaniards Diego Costa and Marcos Alonso plus a tap-in by Nemanja Matic.
Chelsea banking on other big strikers with Costa still doubtful
The hosts struggled to break down Arsene Wenger's side despite enjoying the majority of possession and will feel hard done by after crafting the best of the game's few openings in a lively game at Stamford Bridge.
Spain claimed the biggest win of the tournament with a 5-0 thrashing of Slovakia in their final European Championship Group E match on Wednesday to finish second in the group and set up a last-16 clash with Croatia in Copenhagen.
A fortunate 85th-minute goal from Brazilian Willian earned Premier League champions Chelsea a 1-1 draw at Liverpool on Saturday after Mohamed Salah's 15th goal of the season looked to have given the hosts the three points.
Under-fire manager Louis van Gaal said he would not quit after Manchester United extended their run without a victory to eight games in all competitions with a 0-0 draw with champions Chelsea in the Premier League on Monday.
Manchester United's winless run continued but they gave under-fire coach Louis van Gaal crumbs of cheer with a committed display in an entertaining 0-0 draw with Chelsea while Arsenal went top of the table on Monday.
Chelsea moved within two points of fourth-placed Tottenham Hotspur in the Premier League after a 1-0 victory over Liverpool thanks to an Olivier Giroud header at Stamford Bridge on Sunday.
Chelsea wrapped up their pre-season tour of the United States on a high note by beating Barcelona in a shootout after their International Champions Cup match ended 2-2 on Tuesday.
IMAGES from EPL match played between Manchester City and Chelsea on Sunday
Chelsea goalscorer Willian said they must go on the attack against Barcelona at the Nou Camp next month to have any chance of reaching the Champions League quarter-finals.
A summary of Saturday's action in the Premier League.
Chelsea midfielder Cesc Fabregas gave his manager a reminder of his talents by scoring twice in extra time as they fought back from two goals down to knock Premier League champions LeicesterCity out of the League Cup 4-2 on Tuesday.
Jota's header earned the three points but it was a struggle in the rain for Juergen Klopp's side who looked uneasy at the back without the injured Virgil van Dijk.
Spain are still favourites to finish top of Group E above Sweden, Poland and Slovakia but, after struggling to break down conservative sides such as Georgia and Greece in March, they know coming first will not be a procession.
Thirteen-times European champions Real, who had come through each of their last three Champions League semi-final ties, had been second best for much last week's first leg which ended 1-1.
Conte said his team could face a more daunting task against the five-time European champions at the Nou Camp.
Chelsea a 1-0 win over Manchester United in a compelling Premier League clash on Sunday
While Chelsea and Manchester City slug it out at the top of the Premier League, Louis van Gaal's Old Trafford revolution gathers ever more momentum in the red half of Manchester.
City's Aguero doubtful starter for Watford trip
Alexandre Lacazette's free-kick sent Arsenal into the Europa League semi-finals with a comfortable 1-0 win away over Napoli, while Chelsea beat Slavia Prague 4-3 in a roller-coaster game, helped by a Pedro brace.
IMAGES from the EPL matches played on Sunday
Departing captain John Terry led his Chelsea champions to a rip-roaring 4-3 victory over Watford on Monday, scoring the first goal on an evening of celebration, fireworks and streamers rather than vintage football at Stamford Bridge.
Chelsea's David Luiz never really looked cut out for a role as a defensive rock in one of England's meanest rearguards.
The victory, Chelsea's 28th of the season, put the long-time league leaders 10 points clear of second-placed Tottenham Hotspur, who have only three games left to play.
Trailing 1-0 from the semi-final first leg, Chelsea turned the tie on its head with goals by N'Golo Kante and Eden Hazard in the first half but Fernando Llorente struck for Spurs in an enthralling Stamford Bridge duel.
The racist chants took the shine off a great day for Chelsea who have tightened their grip on fourth place.
Chelsea came from behind to beat Leicester City 3-1 on Wednesday and move to within one win of clinching the Premier League title for the first time in five years.
Chelsea beat Arsenal 3-2 in a pulsating London English Premier League derby on Saturday with defender Marcos Alonso scoring an 81st-minute winner after the Gunners had fought back from an early 2-0 deficit.
IMAGES from the English Premier League matches played on Wednesday.
Is VAR sucking the life out of the game?