Chelsea have been told they've signed a star in Juan Mata.
Mata's former Valencia team-mate Roberto Soldado claims the Blues have signed a star in the making.
He said: "Mata is a great person, a great player, and someone who helps create a good atmosphere in the dressing-room.
"On the pitch he really contributed to our success and he is a big loss for us. We all hoped he would stay.
"But he has gone to a club of enormous potential. They are among the top four clubs in the world and it's a great opportunity for him."
