"We solved a lot in this summer, and for this reason it's very important to try to improve our squad because we have one more competition".
The title will be decided between Manchester United and Manchester City.
Premier League Live with Sky Sports is back on Today FM this weekend for a 20 season.
Willian is entering his fifth season with Chelsea, claiming two Premier League titles in that time.
Nemanja Matic's name is echoing strongly at Chelsea over the past couple of weeks as it becomes apparent that Antonio Conte might have been against his sale to Manchester United.
Mourinho hails Man United debutant Matic
He told Sky Sports News: "When a player leaves a club, you do not normally see a manager speak so glowingly about them". They are bit like Real Madrid in this sense - they don't value the manager like other clubs.
Chelsea begin their 2017-18 campaign at home to Burnley on Saturday having stormed to glory in Conte's debut season in England's top flight.
"He is starting to understand what I want from him during games", Conte said.
He said: "I admit it [his fee] is a very important amount, but I have personality to play quietly and go my way". But sometimes I think you must accept this insane summer transfer market.
Antonio Conte wants to make further signings before the end of the transfer window. "They've had an outflux, a lot of players have gone but majority were squad players and young players who probably won't affect the first XI that much.
But Chelsea have signed Bakayoko, who made a great season at Monaco, to reinforce our team".
The Serbian's Premier League experience could prove to be a world's difference as Blues wait for the summer arrival Bakayoko to hit the ground running. My idea was to give Bakayoko the right time to adapt in this league behind Matic.
Alexandre Lacazette's Premier League debut highlights Arsenal vs. Leicester
Get in touch with us on Twitter and Facebook . "[They have made] good additions to the quality they already have there". Mustafi, along with Rob Holding and Nacho Monreal, will play in the three-man defence. "He is focused.
Jose Mourinho landed a considerable blow to Chelsea's preparations for the upcoming campaign by pinching Romelu Lukaku - a big target for the Italian - from under their nose.
"I know now twice as many people look at me".
'But you can see at Juventus I think he used to do the same thing, in the summer he'd push the club to buy more players to move forward.
Morata however admitted it has been challenging to adapt to Antonio Conte's tactics.
Rooney also played in both legs of the Europa League third qualifying round against Slovakian side MFK Ruzomberok.
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The Browns haven't solved their endless QB dilemma, but Garrett appears to be a long-term answer at defensive end. We've already gone over that, but the effects were that Kizer didn't get in the game until the second half.
Chelsea have signed just four players - Alvaro Morata, Tiemoue Bakayoko, Antonio Rudiger and Willy Caballero - in a hard summer transfer window, but Conte says that he and the club's hierarchy remain on the same page when it comes to player recruitment.
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