Chelsea chief Petr Cech feels it was the right time to bring back Romelu Lukaku.

Cech wrote for chelseafc.com: "We have welcomed Romelu Lukaku back to Chelsea, a team-mate of mine when he first came to the club 10 years ago.

"When you start playing at the age of 16 years old in a top professional league like the Belgian one and you start scoring goals, it obviously shows that you have a talent and some potential.

"When he moved to Chelsea, he had the disadvantage at that time that Didier Drogba was at the full peak of his form and his ability. Didier was scoring goals and we knew exactly how to use him.

"When Romelu arrived at Chelsea, his hold-up game was not the same as it is now, because at Anderlecht he was used to concentrating on running. He would get the ball and kill everybody with speed, power and his finishing. At Chelsea at that time, we used the number nine in a slightly different way for the hold-up play, and also it's a more challenging league than Belgium.

"He needed a little bit of time to adapt, his career took a different path and he's been successful everywhere he's been. Over the years he has obviously improved and you can see when he talks that he was conscious about needing to improve this part of his game.

"And he's done it, so that is credit to him, and we are delighted to have him back. He knows what he's coming in to and probably has a little bit of unfinished business here which he can nicely complete if everything goes the way we all wish.

"Everybody's path is different and it shows that if things are not working at the beginning, you should not dismiss any opportunities or different pathways."