Chelsea boss Mauricio Pochettino admits he still needs more from Mykhaylo Mudryk.
Pochettino admits the winger still isn't ready to be a regular starter.
"He is a young guy who came here as recently as a year ago," said the Argentine.
"We all know the circumstances surrounding his transfer. Of course he needs time to improve. He has great potential, but it is a team game and not tennis.
" Our players must perform as a team. When you look at him, he's great, but he has to adapt and play for the team. It's about getting used to it and it takes time."