Chelsea's official twitter handle just tweeted the news minutes ago ! A part of the statement from Chelsea's official website read:

Chelsea Football Club is delighted to announce Diego Costa has today completed his transfer from Atletico Madrid by signing a five-year contract.He will join up with the first team for our pre-season European training camp next week.Since becoming a first-choice selection at Atletico, Costa has been one of the most consistent strikers in European football, with his goals and performances over the course of 2013/14 propelling his former club to a first La Liga title in 18 years and a place in the Champions League final.

Read what the player said on his signing below :

Costa said: ‘I am very happy to sign for Chelsea. Everybody knows it is a big club in a very competitive league, and I am very excited to get started in England with a fantastic coach and team-mates. Having played against Chelsea last season I know the high quality of the squad I am joining.I would like to thank everybody at Atletico who made me into the player I am, it was an incredible time for me, but now I am starting a new adventure and I hope to win many trophies with Chelsea.’

A short description of the kind of nightmare defenders could dream of :

Costa is a powerful and direct, the 25-year-old built a strong reputation in Spain as a fine finisher, particularly in one-on-one situations, and is capable of scoring goals with both his left and right foot while his physical nature also makes him a real threat in the air. His favoured position is as the central striker, with his ability to run in behind opposition defenders making him difficult to pick up.


Welcome to Chelsea , Diego Costa

SOURCE : http://www.kingebuka.com/2014/07/breaking-news-diego-costa-completes-his.html
SOURCE : http://www.chelseafc.com/news/latest-news/2014/07/costa-deal-completed.html?WT.mc_id=social_20140715_27869646

He's not going to be any different from Torres.

VIPERVENOM: He's not going to be any different from Torres.

i cant wait for costa to score at least 26 goals in his first season for chelsea

up blues

VIPERVENOM: He's not going to be any different from Torres.

Because your life has never been any different from your ancestors'? Oh, I understand. But everybody can never be as stagnant!

That's why everybody can never experience the good things of life, because they don't wish others well. B4 your fellow human beign embarks on a journey, you've already wished him a fatal accident. See your life...

Hey! Everybody's lives can never be like yours! Unless you wish people peace, you can never see peace!

Welcome to the Bridge, Costa!
Haters are already hating!
Costa is already training!
Mourinho is already working!
Chelsea FC will keep being successful!

JoeCutie: Because your life has never been any different from your ancestors'? Oh, I understand. But everybody can never be as stagnant!

That's why everybody can never experience the good things of life, because they don't wish others well. B4 your fellow human beign embarks on a journey, you've already wished him a fatal accident. See your life...

Hey! Everybody's lives can never be like yours! Unless you wish people peace, you can never see peace!

Welcome to the Bridge, Costa!
Haters are already hating!
Costa is already training!
Mourinho is already working!
Chelsea FC will keep being successful!

i just aired my opinion and you're here blabbin. Well i cant blame you. Its typical amongst most chelsea fans. Just because he had one good season doesn't make him world class. Look at benteke for example. Costa is average. He was horrible for spain in the world cup. I repeat. Costa is another torres. And with mourinho's bus parking tactics, he wont score more than 10 goals. #myopinion. You dont like it #dealwithit

JoeCutie: Because your life has never been any different from your ancestors'? Oh, I understand. But everybody can never be as stagnant!

That's why everybody can never experience the good things of life, because they don't wish others well. B4 your fellow human beign embarks on a journey, you've already wished him a fatal accident. See your life...

Hey! Everybody's lives can never be like yours! Unless you wish people peace, you can never see peace!

Welcome to the Bridge, Costa!
Haters are already hating!
Costa is already training!
Mourinho is already working!
Chelsea FC will keep being successful!

tell them! tell them! tell these haters

VIPERVENOM: i just aired my opinion and you're here blabbin. Well i cant blame you. Its typical amongst most chelsea fans. Just because he had one good season doesn't make him world class. Look at benteke for example. Costa is average. He was horrible for spain in the world cup. I repeat. Costa is another torres. And with mourinho's bus parking tactics, he wont score more than 10 goals. #myopinion. You dont like it #dealwithit

man united fan always think they know football with their sentimental judgement..smh...if he flop which i know he will not, is it your money

chelsea logic be like "if u can't beat them! Buy them!"

hensben: man united fan always think they know football with their sentimental judgement..smh...if he flop which i know he will not, is it your money

wat sentimental judgement? Go to foreign sports forums and see for urself. Some chelsea fans are even sceptical. You have lukaku who has impressed on loan for two seasons yet chelsea is buying a one season player and still tryin to loan ur best striker at d moment

VIPERVENOM: wat sentimental judgement? Go to foreign sports forums and see for urself. Some chelsea fans are even sceptical. You have lukaku who has impressed on loan for two seasons yet chelsea is buying a one season player and still tryin to loan ur best striker at d moment

why did man united buy rvp an injury prone when they have rooney, chicha n welbeck?

JUST when I thought SANITY have been restored to the BPL with the sell of Luis Suarez to Barcelona, there came one Diego Costa!!!!
10 goals, 19 Yellow cards and 12 red cards awaits you!!!!
Welcome to the Royal Blue of London tho

The Next Mateja Kezman !!!!!!!!

hensben: why did man united buy rvp when they have rooney, chicha n welbeck?

Don't mind him, he's sick in the head. It's none of their business. Go Chelsea! Go Diego Costa.

JoeCutie: Because your life has never been any different from your ancestors'? Oh, I understand. But everybody can never be as stagnant!

That's why everybody can never experience the good things of life, because they don't wish others well. B4 your fellow human beign embarks on a journey, you've already wished him a fatal accident. See your life...

Hey! Everybody's lives can never be like yours! Unless you wish people peace, you can never see peace!

Welcome to the Bridge, Costa!
Haters are already hating!
Costa is already training!
Mourinho is already working!
Chelsea FC will keep being successful!

I don't think what she said calls for such Venom,I A̶̲̥̅♏ a chelsea fan$I praying he doesn't turn out to be another Torres.

VIPERVENOM: i just aired my opinion and you're here blabbin. Well i cant blame you. Its typical amongst most chelsea fans. Just because he had one good season doesn't make him world class. Look at benteke for example. Costa is average. He was horrible for spain in the world cup. I repeat. Costa is another torres. And with mourinho's bus parking tactics, he wont score more than 10 goals. #myopinion. You dont like it #dealwithit

I pray u are wrong.
Cause that is gonna break my heart.

Diego goal costa, i just love this guy
#biggerthanlife