Former Chelsea midfielder Juan Mata says he's still in contact with many former Blues teammates.

Mata left Chelsea almost ten years ago for Manchester United but retains close ties to the club. He says he was pleased to see Cesar Azpilicueta eventually take the club captaincy before his departure in the summer for Atletico Madrid.

Mata told Chelseafc.com: "He already some experience in football, mainly in the Spanish and French leagues, but you could see already his determination. I think Azpi is a guy who has achieved what he has achieved because of his professionalism and his mind-set and his determination.

"On top of his qualities as a player, for me his key feature is his mind, and you could already see it in the beginning.

"He had some trouble, having not as much game time as he wanted in the beginning, but he was very determined waiting for his chance and he got what he deserved.

"He had an incredible career at Chelsea, winning so many trophies, being the captain for some time. He's a legend at the club and he got the recognition that he deserved because he committed 100 per cent to his profession."

Mata added: "I saw Cesar this summer. He signed for Atletico Madrid and I spent some time in Madrid so we met. It was nice to catch up with him.

"I'm in permanent contact with Ori (Romeu). I text him when he signed for Barcelona, which was very nice to see. He has got the reward he deserves, playing for his dream club, doing well, feeling like an important player after a great season at Girona.

"And Fernando too, he is a coach at the Atletico Madrid academy. It's been some time since I've seen him personally, but also we keep in touch. He is one of the most important players in my career as a team-mate and as a friend. I will always be grateful to him."