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Chelsea strolled towards the Premier League title last season, and early signs suggest that may have caused them to be a little complacent in the transfer market.
A slow start to the season for Jose Mourinho's men has been exaggerated by their largely underwhelming business off the field. The deal to bring Radamel Falcao to Stamford Bridge is not without its potential pitfalls and while players like Asmir Begovic and Baba Rahman represent decent signings, they hardly seem enough on which to defend a title.
The same cannot, however, be said for Pedro, who is undoubtedly a class signing.
The loss of club legends like Petr Cech and Didier Drogba will have hurt but they came at right time. Meanwhile, January signing Juan Cuadrado joins the club's long list of players out on loan, having temporarily joined Juventus.
Here are all of Chelsea's major deals this summer...
Show all 20 1 /20Chelsea: Summer 2015 completed transfers Chelsea: Summer 2015 completed transfers IN: Nathan (Atletico Paranaense) £4.5m Nathan, a teenage midfielder, was immediately sent on loan to Dutch club Vitesse Arnhem to get a work permit
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Chelsea: Summer 2015 completed transfers Danilo Pantic (Partizan Belgrade) £1.25m The Serbian midfielder was also sent to Vitesse
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Chelsea: Summer 2015 completed transfers Radamel Falcao (Monaco) loan Chelsea will be hoping he returns to the form of his Porto and Atletico Madrid days, rather than the form he showed at Manchester United
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Chelsea: Summer 2015 completed transfers Asmir Begovic (Stoke City) £8m The former Potters No 1 was brought in to provide back-up for Thibaut Courtois after the departure of Petr Cech to Arsenal
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Chelsea: Summer 2015 completed transfers Baba Rahman (Augsburg) £14m Can play at left-back or centre-back and will provide squad depth after the departure of Filipe Luis
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Chelsea: Summer 2015 completed transfers Pedro (Barcelona) £22.1m Stolen from under the noses of Manchester United the Spaniard has already had a big impact with a goal and two assists in his first two matches
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Chelsea: Summer 2015 completed transfers Kenedy (Fluminense) £6.3m The quick teenage winger came on and impressed in the defeat against Crystal Palace
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Chelsea: Summer 2015 completed transfers OUT: Thorgan Hazard (Borussia Monchengladbach) £5.85m The younger brother of star man Eden made his move to Germany permanent after impressive loan spells
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Chelsea: Summer 2015 completed transfers Gael Kakuta (Sevilla) £2.5m) After being fined for stealing him from Lens as a 16-year-old, the French winger never cut it in Blue, playing just six Premier League matches
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Chelsea: Summer 2015 completed transfers Petr Cech (Arsenal) £10m Cech has won Czech Footballer of the Year seven times, the Czech Golden Ball eight times, the Premier League Golden Glove three times, IFFHS World’s Best Goalkeeper once (2005) and also holds the Premier League record for fewest games to reach 100 clean sheets (180) - it hurt Chelsea fans to see him leave
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Chelsea: Summer 2015 completed transfers Christian Atsu (Bournemouth) loan Hoping to do more on the South Coast than he managed on loan at Everton last season
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Chelsea: Summer 2015 completed transfers Josh McEachran (Brentford) £750,000 Once Chelsea's most promising youngster, his career appears to have fizzled out
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Chelsea: Summer 2015 completed transfers Marco van Ginkel (Stoke City) loan After injury in his first season at the club the talented Dutchman spent last year at AC Milan - back in the Premier League he will see more of the limelight
Chelsea: Summer 2015 completed transfers Didier Drogba (Montreal Impact) Free Came back to Chelsea for a second time and played an important role on the pitch and in the dressing room as the Blues won the title. Wanted to continue playing
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Chelsea: Summer 2015 completed transfers Patrick Bamford (Crystal Palace) loan Was brilliant for Middlesborough in the Championship and will hope to prove he can score goals in the Premier League at Selhurst Park
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Chelsea: Summer 2015 completed transfers Filipe Luis (Atletico Madrid) £11.1m Returns to Atletico one year after leaving for a slight loss having grown unhappy at his role on the bench
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Chelsea: Summer 2015 completed transfers Mohamed Salah (Roma) loan Failed to make the grade at Chelsea but was brilliant on loan at Fiorentina last season, prompting Serie A title challengers Roma to make a move
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Chelsea: Summer 2015 completed transfers Oriol Romeu (Southampton) £5m Injuries put an end to his time at Chelsea but after some impressive loan spells abroad Ronald Koeman has taken a chance on the midfielder
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Chelsea: Summer 2015 completed transfers Nathan Ake (Watford) loan Seen as a potential future first-team player, the Dutchman can play in defence or defensive midfield
Chelsea: Summer 2015 completed transfers Juan Cuadrado (Juventus) loan Will go down as one of Chelsea's worst ever transfers after his £23m January move brought just four Premier League starts and no goals or assists
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