Chelsea boss Jose Mourinho thinks new forward Diego Costa is a superb addition to his Blues squad and says the other players have been surprised at how much ability their new team-mate possesses. And Mourinho told Sky Sports: "He's a great addition for us. He is a fantastic player.
"Technically he is very, very good. That's why, lots of the players, they are so happy and so surprised, because his quality is even higher than what they expect.
"He is so strong physically and he gives so much effort during matches.
"When somebody sees him play, the first thing that gets into their eyes is exactly that, the capacity to work hard for the team, and to be so powerful and so strong physically.
"To have Diego, (Fernando) Torres and (Didier) Drogba as our strike force is something that gives us different qualities. We are really strong in that position now."
