Maurizio Sarri says Chelsea need to establish Ethan Ampadu’s best position.
The youngster has played at centre-back and in midfield for the Blues and came on at right-back during Thursday’s Europa League win against Malmo.
And head coach Sarri believes Ampadu’s development will be hampered unless he knows his ideal position.
Sarri said: “We need to find the right position on the pitch for Ampadu. We are trying him as a midfielder, as a centre-back and as a full-back.
“But we need to have a clear idea because from now until the end of the season we have to decide, I think. Otherwise for him it is difficult to improve.”
Ruben Loftus-Cheek also came on as a substitute against Malmo, returning to action after another spell on the sidelines with a persistent back problem.
“We had a lot of problems with Loftus in the last two months,” Sarri said.
“He started to have training with his team-mates only two days ago after a long period of a big problem with his back.”