Manchester United goalkeeper Sergio Romero has said the Red Devils' recent change of formation has helped the side improve their form.
Ole Gunnar Solskjaer set his team up to play 3-5-2 in the Premier League clash with Liverpool that ended 1-1 at Old Trafford on October 20.
The Norwegian used the system again in the 2-1 Carabao Cup victory at Chelsea on Wednesday, and Romero has said a move to a back-three makes United a tighter unit, per the club's official website:
"When you play with a four, you know that one of the two full-backs will get forward while the other tries to sit a little more.