Romelu Lukaku broke his barren run against top six Premier League opposition and provided the winner for Jesse Lingard as Manchester United came from behind to beat Chelsea 2-1 at Old Trafford.
Manchester United have signed Alexis Sanchez from Arsenal, in a swap deal with midfielder Henrikh Mkhitaryan.
Alexis Sanchez has agreed a four-and-a-half-year contract worth £14million after tax to join Manchester United.
And Sanchez is now just waiting to find out if Henrikh Mkhitaryan will agree a switch in the other direction to Arsenal, which would trigger his move to Old Trafford.
Jose Mourinho's recent frustrations continued at Old Trafford as he lost Romelu Lukaku to a worrying head injury in Manchester United's goalless Premier League draw with Southampton on Saturday.
Manchester City took a giant step towards the title as the leaders beat Manchester United 2-1 to clinch a record-equalling 14th successive Premier League victory, while Wayne Rooney's late leveller gave Everton a 1-1 draw at Liverpool on Sunday.
Anthony Martial came off the bench to earn Manchester United a 1-0 win over Premier League title rivals Tottenham Hotspur at Old Trafford on Saturday.
Victory saw United, who had started the day ahead of Spurs on goal difference alone, go three points clear of their London rivals.
Aaron Mooy and Laurent Depoitre struck as Huddersfield Town stunned Manchester United 2-1 on Saturday to claim a first win over the Premier League giants since March 1952.
Liverpool manager Jurgen Klopp said Manchester United got the point they came for at Anfield on Saturday after a dour 0-0 Premier League draw.
Manchester United midfielder Paul Pogba is set to be out for between a month and six weeks with the hamstring injury he sustained in Tuesday's Champions League win over Basel.
The France international, 24, had scans on the injury on Wednesday.
Liverpool forwards Roberto Firmino, Sadio Mane and Mohamed Salah tore Arsenal to shreds as Arsene Wenger's team crashed to a humiliating 4-0 defeat at Anfield on Sunday.