Chelsea boss Graham Potter hailed the performance of Reece James after their Champions League victory over AC Milan.
James scored one and created another in the 3-0 win.
"I think Reece is just a fantastic player, and he's a young player, so he's developing all the time," he said after the match, which climbed Chelsea to second place in Group E.
"He'll get better and better as we go. I've really enjoyed working with him, he's got a lot to offer, he's fantastic.
"He could play any game in the world, he's tremendous.
"My job is to help him reach his potential because his potential is beyond the sky.
"We love him. He's so important for us. My job is to help him reach his potential, and his potential is he can be a Chelsea legend.
"That is the level he has, the potential that he has. For that to happen, he has to be part of a successful team. That's what we're working towards."
