Take an in-depth look at the UCL draw and see how each of the teams will line up in this year's competition.
Chile goalkeeper Claudio Bravo has completed his move from Barcelona to Manchester City for a reported £17 million.
Atletico Madrid have loaned Spanish midfielder Oliver Torres to FC Porto for a season and a half, both clubs confirmed on Thursday.
Jasper Cillessen has completed his move from Ajax to Barcelona, the Spanish champions have announced.
Sunderland have announced the signing of Javier Manquillo on loan from Atletico Madrid.