Middlesbrough boss Aitor Karanka was pleased with Adama Traore's performance in defeat to Chelsea.

Traore repeatedly threatened to make Chelsea pay for not killing off the game, but ultimately failed to capitalise on a series of chances.

Karanka said: "It's normal that everybody is excited when he has the ball, but he has the ball three or four minutes in one game and the rest of the game is 87 minutes, so we have to be careful.

"He is doing really well, he is improving a lot, but he has much more to improve and much more to learn. Because he's young, he can (improve) and, going in this way, for sure he can be a big, big player."