Atletico Madrid Deal worth an initial 55 million euros

Negotiations over the transfer of Diego Costa took almost all of Atletico Madrid's focus throughout the summer, yet there is now an agreement between Chelsea and Los Colchoneros for his return.

On Thursday all previous minor issues were ironed out, with the two clubs agreeing on a total that could reach up to 65 million euros.

Of this total figure, 55m euros will be paid to the London club up front, while the rest of the money will be owed to the Blues in the form of potential bonus payments.

Both clubs took to social media on Thursday afternoon to confirm the agreement, with Costa now given permission to return to the club where he won a LaLiga title in 2013/14.

Chelsea Football Club has today agreed terms with Atletico Madrid for the transfer of Diego Costa... https://t.co/TpJBp3W2Lfpic.twitter.com/5o6OM10inP ? Chelsea FC (@ChelseaFC) 21 de septiembre de 2017

Chelsea had attempted to make this transfer as difficult as possible for the Spanish striker, with whom relations have soured since last season's top scorer refused to train with the reserves.

It is worth remembering, though, that it was Antonio Conte who put both Chelsea and Costa in this predicament with his text message to the striker at the beginning of the summer, which informed the Spain international that he was no longer wanted at Stamford Bridge.

Both clubs will now exchange the relevant documentation, with it hoped the 28-year-old will be able to fly to the Spanish capital in the coming hours.

After arriving in Spain, he will then take the customary medical examinations and it is expected that he will be present at the Estadio Wanda Metropolitano on Saturday as a spectator for the clash with Sevilla.

MARCA reported that a deal was close on Monday, but it was the payment of a loyalty bonus which had prevented the transfer being closed then.

Costa is due five percent of the initial transfer fee, yet neither Los Rojiblancos or the Blues were willing to pay it.

This led to a stalemate that has now been worked through by Miguel Angel Gil and Marina Granovskaia.

As such, he will re-sign with Atletico Madrid on a contract set to run until June 2021, yet he cannot be registered until January 1, 2018.

Whilst those within the Spanish club's hierarchy feel as though they have been forced to overpay for the centre-forward, it is important to note that in the current market a player of Costa's natural ability and goal-scoring prowess would be valued at a far higher price.

So significant has been the breakdown in relations between the player and Chelsea that Jorge Mendes has been forced to act as a mediator in negotiations.

Chelsea had been determined to appear strong and keep their player under any circumstance, whilst Costa had been determined to leave by any means possible.

In the end, the defending English champions have acquiesced, due to the fact that the longer he isn't playing football, the lower Costa's value will be.

Atletico have been helped by the Brazilian born striker's public admission that the only club he would move to was them, as this prevented several Chinese and Turkish clubs from making any real progress on deals during the summer.

Diego Simeone specifically asked for the signings of Vitolo and Costa and has received both players, so it is now up to him to keep results positive until January when both can play.