The result took the Red Devils to within four point of fourth, while also paving the way for Tottenham to launch a legitimate title bid in the final six games of the season, with Spurs only four points adrift of their league-leading London rivals.
United wasted no time in asserting themselves on the game as they stormed into the lead with seven minutes gone, Ander Herrera playing an exquisite ball through for Marcus Rashford, who coolly rolled his shot past the on-rushing Asmir Begovic.
The young striker almost grabbed his brace just eight minutes later but couldn’t get a touch on Ashley Young’s ball right across the face of goal, while the latter then lashed a shot just wide of the mark after 33 minutes as the Red Devils dominated the first-half.
Just three minutes after the restart and United doubled their advantage, Young doing the hard work after picking up the ball out wide and storming into the area, with the ball eventually falling to Herrera, whose deflected shot left Begovic no chance.
Mourinho’s men continued enjoying the better of the chances and Rashford had the home fans on their feet again just after the hour mark with a swift turn and wicked shot which could only ripple the side netting.
Chelsea rarely threatened to really get back into the game and United eventually ran out comfortable winners.