Nemanja Matic admits Branislav Ivanovic was a big influence on his decision to leave MFK Kosice for Chelsea.
After signing a four-year contract, he told Chelsea's official website: "I know a lot about Chelsea, I have been following them.
"I play together with Branislav (Ivanovic) in the national team and have spoken to him about Chelsea. The first time I met him to play in the national team I asked a couple of questions."
Matic is determined to make a positive impression at Chelsea and believes he has the ability to be a success in the Premier League.
"I am a solid midfield player, I have a lot to offer and for sure to progress and I will show everyone why I am at Chelsea," he added.
"I am a central midfielder, and I know I am not well known but I have physical power and I am a quite technical, left-footed player.
"Since the age of 18 I have been at Kosice and before that I had played in the youth team of Red Star Belgrade."
Matic has prior experience of life in England, having taken in a trial at Middlesbrough in January, but is hoping his second spell will be more pleasant that the first.
"I was there in the winter, when I came it was winter in the north of England so it was not very nice, but the squad was okay and I liked it," he said.
MSK president Blazej Podolak said: "Matic goes for 1.75 million euros. The money does not come in instalments, but immediately."