Juventus announced the deal's completion, saying it had signed the Netherlands worldwide to a five-year contract.
The Italian giants have announced that the Ajax defender has arrived in Turin to complete his move to the Serie A champions.
Ajax have bid a warm goodbye to their homegrown Golden Boy victor with a lengthy social media video celebrating Matthijs de Ligt's contribution to the club.
However, they've also said that Alvarez would fancy a move to Ajax, where he could develop better, and only then take the bigger challenge of playing in the Premier League.
"The sporting project proved decisive" in De Ligt's decision to choose Juventus.
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Only migrants who have travelled through countries deemed to be " safe " face restrictions on their asylum claims in the US. He said many companies refused to hire him because his short-term transit permit in Mexico does not allow him to work.
"Jawe" tweeted on the video recording of a 19-year-old football player who came down after a plane landed in Italy.
He had attracted interest from Paris Saint-Germain, Manchester United and Bayern Munich among others after helping Ajax reach the Champions League semifinal and Netherlands the UEFA Nations League final.
He made his debut for the Amsterdam club in 2016 and became their youngest captain in March 2018.
De Ligt previously stated that the two Juve centre-backs were two examples to him, before hinting that the deal was possible this summer.
The player also has a €150m (£134.8m) release clause which will start from the third year of his contract.