Jose Mourinho has already spent over £80m of Roman Abramovich's money on stars such as Cesc Fabregas, Filipe Luis and Diego Costa. Not to mention, the latter two took Los Colchoneros all the way to the La Liga title and Champions League final, beating Chelsea to get there.
Diego Costa was certainly the most impressive star of the team, scoring 34 goals in all competitions last season. However, Luis did play a vital part in Atletico's defence, as well as providing support for players like Costa.
Here is Chelsea's strongest potential starting XI next season.
GK: Thibaut Courtois
Another integral part of Diego Simeone's almost unbeatable team last year, Courtois is arguably among the very best between the sticks. He went on loan to the Vincente Calderon three years in a row from Chelsea, and Atletico had come to rely heavily on the Belgian, even with the knowledge that he could return anytime. Now he's finally getting his chance to shine at the Bridge, and with his young age of 22, there is no doubt he will only improve under Mourinho.
RB: Cesar Azpilicueta
Although he was part of the Spanish team that surprisingly crashed out early in Brazil, he did win the Players' Player of the year award last season, and he fully deserved it. He was reliable in both defence and attack, providing support for the frontmen if needed and carrying out last-ditch tackles when he had to. Although he spent a lot of last season at left-back, right-back is his preferred position. If he is unavailable, there is always the option of Branislav Ivanovic.
CB: John Terry
The natural born leader looked back to his best throughout all of last season, keeping consistent, leading the team and making important tackles every game he played. At the age of 33, many thought time would have caught up to him by now, but nobody seems to have told him that. He was delighted with his contract extension which he undoubtedly fully deserved, saying:
"I'm delighted to have signed an extension to my contract with Chelsea taking me into my 20th year with the club," he said. "I'd like to thank the fans and club for their continued support, and the manager who was instrumental for me last season."
CB: Kurt Zouma
Kurt Zouma was signed from French side AS Saint-Etienne during the January transfer window last season for £12 million, and was immediately sent back there on loan for the remainder of the season. Now, wearing the number five shirt for the blues, he will fight for his starting position, competing with John Terry and Gary Cahill.
LB: Filipe Luis
Another new signing, Filipe Luis recently completed his long-awaited move from Atletico Madrid for £15.8m. He helped Atletico beat Barcelona and city rivals Real Madrid to the La Liga title, securing it on the final day. He also helped Los Colchoneros get to the Champions League final, only to be beaten by Real Madrid. He was a massive asset to Atletico's defence, and may well be just as valuable playing at the Bridge.
CM: Paul Pogba
The Frenchman has been under heavy amounts of speculation for quite some time now regarding a move to the Bridge. He had a decent campaign in Brazil playing for Les Bleus, scoring one of two goals that helped France get past Nigeria in the round of 16. Although Chelsea will need to pay amounts in excess of £50m, at his young age of 21, Pogba has lots of time to improve and may well be among the very best in the years to come, if he isn't already. If the signing doesn't come off, Ramires is always available.
CM: Cesc Fabregas
Chelsea captured the high-calibre signing of Cesc Fabregas after he was shut out by Arsene Wenger, much to the dismay of the Gunners' faithful. The Spaniard recently put pen to paper on a £27m deal, and will be an extremely valuable player at the Bridge with his pinpoint passing and accurate shooting. He replaces Frank Lampard, who recently joined MLS side New York City. Fabregas possesses many of the abilities Lampard has, and seems like the perfect fit for Jose Mourinho's side.
Fabregas said: “I do feel that I have unfinished business in the Premier League and now is the right time for me to return,”
“Yes, everyone knows that Arsenal had the first option to sign me. They decided not to take this option and therefore it wasn’t meant to be. I wish them well.”
LM: Andre Schürrle
Schurrle had a fantastic World Cup, coming on as a substitute against Algeria and scoring the decider, as well as netting a late brace in Germany's famous 7-1 thrashing of Brazil in the last four. His glittering campaign proves he is good enough to start ahead of Willian in midfield.
RM: Eden Hazard
The young Belgian won player of the year last season, and was Chelsea's top goalscorer with 14 league goals, and 7 league assists to his name as well. He will look to continue his dazzling form into next season, hoping to help his side snatch the title away from the Etihad.
Oscar was signed at around the same time as Eden Hazard, and like him, has been fantastic ever since. He had a great last season, helping Chelsea to the Champions League semi-finals, where they were beaten by Atletico. He scored 11 goals last season and created many more, and he will carry his creativity and natural Brazilian flair into next season.
ST: Diego Costa
Diego Costa was absolutely magnificent for Atletico Madrid last season, almost winning the La Liga golden boot, coming second to Cristiano Ronaldo. Like teammate Filipe Luis, he played an extremely important part in Diego Simeone's side. He is very similar to teammate Romelu Lukaku, who he will be competing with despite finding the back of the net 34 times last season. However, he should fit nicely into Jose Mourinho's system.
Do you think these are the right players to start next season for Chelsea? Give us your suggestions below!