The Croatia international arrived at Stamford Bridge from Real Madrid last week after the Spanish club completed a deal to sign Thibaut Courtois from the Blues.
Kovacic will now be hoping to impress new manager Maurizio Sarri as he bids to hold down a regular spot in the first team at Stamford Bridge this season.
Morata and Kovacic were friends and team-mates at Real Madrid, and the Spanish forward has revealed his delight at seeing the midfielder move to Stamford Bridge for this campaign.
Speaking in an interview with Chelsea FC’s website, Morata said: “Mateo, first of all, is an amazing person.
“He is a midfielder who is good with the ball, very technical. He can break through the lines with his quality, he can score goals and he has a lot of power in his legs.
“With him we will win a lot of possession and he has the ability to carry the ball into the final third and provide passes for the strikers.
“He’s a very good player which is very important for us because we need top players.”
Chelsea FC will be aiming to be one of the main contenders for the Premier League title this season after they ended up in a disappointing fifth place in the table last term.
The west London side managed to end last season on a positive note by beating Manchester United in the FA Cup final back in May.
Chelsea FC moved quickly to appoint Sarri as Conte’s successor after the Blues opted to part company with the Italian manager last month after two years.
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