Danilo is motivated to become a better player at Juventus with the help of former Real Madrid team-mate Cristiano Ronaldo and new head coach Maurizio Sarri.
He will reunite with five-time Balon d'Or winner Ronaldo at the Allianz Stadium, having previously won two Champions League titles together at Madrid.
Speaking at a press conference on Tuesday, Danilo joked he had already asked for the number seven shirt belonging to Ronaldo.