A lot has been made about the move since, with speculations rife concerning the reasons behind the eye-brow raising decision made by the Portuguese megastar.
Giggs believes Cristiano moved on from Real to one step further than Messi as the race to prove who's superior continues to provide fans with unbelievable moments.
Ronaldo completed a sensational €100 million switch (£88m/$117m) to the Serie A champions earlier this week, bringing an end to his successful nine-season stay in Madrid.
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However, under the blue skies of the Chequers' garden, he said their relationship was "the highest level of special". It was during that trip to Washington that she invited him to the UK.
According to United Kingdom sports outlet Metro, the Wales manager, who was Ronaldo's teammate at Old Trafford, believes that the Portuguese only moved to Turin to step up further his claim of being better than Messi.
Talk of Neymar to Real Madrid has been ongoing since nearly the moment he signed for Paris Saint-Germain.
Ever since he joined Manchester United from Sporting Lisbon as a gangly 18-year-old in 2003, Ronaldo has worn the No 7 shirt and has even created his own CR7 fashion label, in a reference to his initials and jersey number. Today, Man Utd face a battle with Real Madrid over Sergej Milinkovic-Savic... I did it with Portugal.'.
Thousands of fans are likely to surround the club's ground as they welcome the five-time Ballon d'Or victor to Italy. But they've chose to rebuff rumours of a Neymar offer yet again, due to the talk intensifying over the last few days, in the wake of Cristiano Ronaldo's move to Juventus. Let us know in the comments section below.