The Whites were thrashed 6-2 by United at Old Trafford in an incredible game that saw 43 shots on goal.
Scott McTominay delivered his most complete performance yet, scoring twice inside the opening three minutes.
However, Marcelo Bielsa claims that he will not change his team’s playing style despite a heavy loss.
“In the first half we had similar chances to the ones they had but we weren’t able to score,” Bielsa was quoted by Sky Sports.
“Our attacks came from combination play and their attacks came from the fact we were losing the ball in attacking positions.”
“They would transition from defence to attack. Our return was slower than their transition.”
“At half-time we were losing by a big margin and I wanted to make the couple in midfield more competitive and make them recover the ball easier.”
“We will not abandon the way we play,” he noted.
Meanwhile, Bielsa’s side once again earned plaudits for their bold, attacking play.
But Sunday’s result now means they have conceded 30 goals this season, more than any other Premier League side.
Sunday’s win has lifted United to the third position with 26 points from 13 games played so far.
United’s position in the league table for Christmas is their best since Sir Alex Ferguson departed.
This time 12 months ago, they were just eighth, a mammoth 24 points shy of the summit.
United is now five points behind table leaders Liverpool but with a game in hand.
Manchester United will go to Everton in the Carabao Cup quarter-final on Wednesday night.
Meanwhile, Leeds will host Burnley on December 27th in the league.