Kurt Zouma has explained that his sole focus in Chelsea's Premier League clash against Manchester United was to nullify the threat of Marouane Fellaini.
The 20-year-old played alongside Nemanja Matic in a defensive midfield role, but was given the job of tracking the in-form Belgian around the pitch to stop his physical presence having an effect on the game.
United dominated possession at Stamford Bridge but the Blues secured the victory thanks to Eden Hazard's first-half strike to edge Jose Mourinho's men closer to the top-flight crown.
Zouma told the club's official website: "I had to stay with Fellaini because we knew he is on fire at the moment.
"He has scored a lot of goals so I had to keep an eye on him, and I think I did it well. I had to be physical with him and stay close to him.
"The game was very difficult. The most important thing was that we had one chance and we scored. We defended very well. Manchester United didn't have many chances to score. We stayed compact."
Chelsea hold a 10-point lead at the top of the Premier League with six matches remaining in their season.