With only three games left to play in the league, United stayed in sixth place —five points behind fourth-place Arsenal and having played two matches more than its rival for Champions League qualifica
Renan Lodi scored the only goal at Old Trafford as Spanish champions Atletico advanced to the quarter-finals 2-1 on aggregate.
Manchester United's David De Gea becomes first goalkeeper in six years to claim Player of the Month award
David De Gea becomes the first goalkeeper to win the monthly prize since February 2016, when Southampton's Fraser Forster claimed it.
United have now won just one of their last six Premier League games and could finish the day 11 points off the top of the table should Chelsea beat Burnley at Stamford Bridge.
First choice keeper de Gea was badly at fault for Portugal's second goal of the game when he let a long-range shot from Portugal captain Cristiano Ronaldo squirm from his grasp.
David De Gea had a forgettable World Cup debut as goalkeeper for Spain but quickly turned his focus to the bigger picture for the national team.
Ask any manager and he will tell you what a good man between the sticks brings to the team...
Ferdinand admitted that he, along with some senior players, doubted De Gea's potential when he first arrived at Old Trafford.
Besides Romero, United manager Jose Mourinho has first-choice stopper David De Gea and the highly-rated Joel Pereira.