Argentina v Portugal - International Friendly
MANCHESTER, ENGLAND - NOVEMBER 18: Lionel Messi of Argentina shakes hands with Cristiano Ronaldo of Portugal prior to the International Friendly match between Argentina and Portugal at Old Trafford on November 18, 2014 in Manchester, England. (Photo by Laurence Griffiths/Getty Images)

Cristiano Ronaldo’s former Manchester United team-mate Ryan Giggs has suggested that being better than Lionel Messi may have been what drove him to make the unexpected move to Juventus

Ronaldo completed his stunning €112m move to the Serie A champions on Tuesday after a week of negotiations.

The 33-year-old’s move to Italy will likely be the end of his decade-long rivalry with Messi, with the duo having won the Ballon d’Or award five times each and having battled intensely for Real and Barcelona since Ronaldo’s arrival in 2009.

With the Portuguese superstar having now conquered England and Spain, he heads to Italy with the aim of adding to Juventus’ seven consecutive Serie A titles.

But Giggs suspects that his former teammate’s rivalry with Messi may have been a factor in the move.

“I’m surprised that he would leave Real Madrid and go to Italy,” Giggs said on ITV, via SportsKeeda.

“I think it’s a big challenge for him but he’s going to a huge club. Having that on your CV: Real Madrid, Man United, Juventus – it’s some CV.

“He’s obsessed with being better than Messi. He has that now, that, ‘I did it in England, I did it in Spain, I’m going to do it in Italy … I did it with Portugal.’

“So maybe that will be his argument when [he asks himself]: ‘Am I better than Messi?'”