Filipe Luis has no doubts Diego Costa will become a fans' favourite at Chelsea.
Both players joined Chelsea this summer from Atletico Madrid.
"Diego is an unbelievable player - you are going to love him, because he gives everything for the shirt," Luis told the official Chelsea magazine. "If he isn't already the best No 9 in the world, he will be very soon.
"He's a brilliant player with a big heart and I'm very happy he's here with me because he'll help me grow as a Chelsea player.
"I know him very well and I know he fights for every ball. If I have won the ball in a forward area of the pitch, I know I have to look to give it to him because he is better than me in front of goal.
"So, I always try to find him, look where he is and get the ball to him, because I know he is going to score."
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