Juventus sign Ronaldo from Real Madrid

Julien Toyer and Richard Martin

Italian champions Juventus have signed Real Madrid forward and Portugal captain Cristiano Ronaldo.

Five-times world player of the year Ronaldo signed on Tuesday, the La Liga club said in a statement.

Ronaldo, who joined Real from Manchester United in 2008 for a then world record 80 million pounds ($A142 million), 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.