Chelsea signing Romelu Lukaku says Thibaut Courtois will prove a great addition.
The former RacingGenk goalkeeper arrived before Lukaku, but is now with Atletico Madrid on-loan.
"I know Thibaut, he is a very good friend of mine and we played against each other since we were 13 years old when he was at Genk and I was in Anderlecht," Lukaku told chelseafc.com.
"I remember one game we played we won 4-0 and I scored four times. Sometimes we still laugh about that, but I am happy we are in the same team because he is a very good goalkeeper who is very calm and I hope he will get a good season on loan in Atletico."
