Chelsea boss Thomas Tuchel was pleased with debutant Lewis Hall for their FA Cup win against Chesterfield.

Hall impressed on the left side of a back three. Aged just 17, he set up Romelu Lukaku's goal and also had the shot which led to Andreas Christensen's header. Tuchel explained why the Academy graduate deserved to start.

"It was his performance in general, his attitude in training and the quality he showed. He was very calm, very good in training in our possession games and small-sided games.

"He deserved to start. We needed a pause for Toni (Rudiger) and Azpi (Cesar Azpilicueta) and Marcos (Alonso) in defence. We had three defenders left and he was one of them.

"It is very clear what we demand from the players," added Tuchel.

"The position helps them. It is a very supportive dressing room, with a very supportive attitude from the more experienced players. This is very good for the young boys. In the end they have to step up and show what they are capable of.

"They did good against Brentford, the guys who played, and today they did their best to help us win. There is no need to talk it down, and there is also no need to get super overwhelmed."