Chelsea have completed their fourth signing of the summer for Thomas Tuchel as 18-year-old goalkeeper Gabriel Slonina joins the club.
He joins the club for around £12million from Chicago Fire in the MLS, where he will be on loan until January after completing a move back to his boyhood club.
The American becomes Todd Boehly's third confirmed signing of the summer after deals for Kalidou Koulibaly and Raheem Sterling were completed last month. However, Chelsea and Aston Villa confirmed an agreement has been reached for the signing of Carney Chukwuemeka on Tuesday.