Cristiano Ronaldo has left Real Madrid for Juventus, the Spanish club confirmed on their website. Juventus also issued a press release confirming the move.
Ronaldo had signed a four-year deal and had cost Juventus 100 million euros.
The five-time Ballon d'Or winner, who joined Real from Manchester United in 2008 for a then world record 80 million pounds, is the Spanish club's all-time top scorer with 451 goals in all competitions and won two La Liga titles and four Champions League trophies with them.
The signing of the latest Ballon d'Or winner and top scorer in the Champions League for the last six seasons represents a major coup for Juve, who have had a stranglehold on the Italian title since 2012 but have not won Europe's top honour since 1996.
Juventus are set to play Real Madrid in a pre-season International Champions Cup tournament in the United States, with the match taking place at FedEx Field in Washington on Aug 4.