Chelsea boss Maurizio Sarri was pleased to see Callum Hudson-Odoi score in their rout of Dynamo Kiev.
The Blues won 0-5 to reach the Europa League quarterfinals.
Hudson-Odoi was again on the scoresheet and Sarri stated: "He played very well.
"Callum in space is really a very good player. I'm very happy for him but he has to keep his feet on the ground because he is very young.
"He can improve more, which is what I want to see."