Chelsea have announced on their official website that striker Alvaro Morata has finally joined the club.
The Spaniard is manager Antonio Conte's fourth summer signing.
He follows Willy Caballero, Antonio Rudiger and Tiemoue Bakayoko.
"I am so happy to be here," Morata said.
"It's an incredible emotion to be part of this big club. I am looking to work hard, score as many goals as I can and to win as many trophies as possible."
Technical director Michael Emenalo added: 'We are delighted to complete Alvaro's signing and welcome him to the club.
"We believe he can make a great impact for Chelsea and look forward to seeing him in action.
"Alvaro has proven class at the highest level and his quality will be a huge asset to Antonio and the squad."
