£20m Brazilian Filipe Luis: I don't know if joining Chelsea is right or wrong

Chelsea new boy Filipe Luis says he is taking a step into the unknown.

The transfer of Atletico Madrid's Filipe Luis to Chelsea was announced by the Spanish side yesterday.

It rubber-stamps a long running saga regarding his future, to strengthen the left-back spot which was weakened by Ashley Cole being released.

Luis was part of a successful Atletico side last season, one which won the La Liga title and reached the Champions League Final.

Many resultantly questioned the Brazilian defender's motives for desiring such a move, but he denies it was financial.

Speaking at a press conference, he instead claimed it was a new challenge he was seeking.

"The truth is that as a child I always dreamed of playing in the Premier League, and decided to communicate it to the club so they could see that that was my goal, a change of scenery.

"The reason for my leaving is neither economical nor because I’m at odds with Atlético de Madrid.

"I feel very identified with this club but at 29, I very much wanted to try a different league".

Luis does admit however, that he is taking a leap into the unknown by doing so, and leaving his comfort zone behind him.

He added: "That’s my decision. I really wanted to talk, many times. I don't know if it’s a wrong or right decision, but it’s the one I’ve taken at this moment."

Luis has a fight on his hands to win the left-back spot, after Cesar Azpilicueta's successful switch to the position last season, keeping Cole on the bench.

The Spaniard can play on the right too, but that would mean Branislav Ivanovic being left out or being moved into the centre.

It's a nice problem for Jose Mourinho to have, and a real strength in depth which will allow the club to challenge on all fronts next season.

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