The Portuguese forward, one of the best players of all time, has won everything there is to win at club level and will become the first man to win Champions League titles in England, Spain and Italy if he can help the Bianconeri to continental glory during his time in Turin.
Juve were last crowned European champions in 1996. Here, we compare three of their current stars to three from 22 years ago.
2018: Forward – Cristiano Ronaldo
A haul of 450 goals for Real Madrid across nine years speaks for itself. In Ronaldo Juve have signed a phenomenal striker who has it all: a range of powerful shots, fearsome heading ability, pinpoint accuracy from free-kicks, plus strength and fitness that is remarkable for a 33-year-old.
1996: Forward – Alessandro Del Piero
Del Piero shot to fame as his eight goals helped Juve win a league and cup double in 1995 and the next season he was able to fully emerge from the shadow of Roberto Baggio, from whom he inherited the iconic number 10 shirt. Like Ronaldo he was creative and technical, and could take a wicked free-kick.
2018: Midfielder – Sami Khedira
Juve have been blessed with excellent options in the middle in recent times, with Andrea Pirlo, Arturo Vidal and Paul Pogba all strutting their stuff in black and white.
When pass-master Pirlo departed in July 2015, Khedira was a canny acquisition to replace him and, although he has missed swathes of matches due to injury, his all-round ability in defensive and forward roles has really lifted Juve.
1996: Midfielder – Antonio Conte
Best known to fans in England as the current Chelsea manager, Conte was a tenacious box-to-box midfielder who made up for a lack of true natural talent with hard work and football intelligence. Not afraid of getting forward, like Khedira he provided some key goals at key times for the Old Lady.
2018: Defender – Giorgio Chiellini
Following the departure of veteran goalkeeper Gianluigi Buffon to Paris Saint-Germain, tough-tackling centre-back Chiellini is the new Juve captain and he is the rock around which a miserly defence has been built in recent years.
Originally a left-back, Chiellini has grown better accustomed to starting plays from the back, a role which Leonardo Bonucci previously fulfilled before heading to Milan.
1996: Defender – Ciro Ferrara
Skipper throughout Juve’s dominant period in the mid-1990s, Naples-born Ferrara was a truly world-class defender – athletic and strong, a superb marker and tackler – as well as providing calm and cultured leadership and the occasional goal.
Ryan Giggs called him one of the toughest defenders he ever played against, describing the uncompromising treatment he received as “old school”.
Here, we take a statistical look back at the Portugal star’s nine seasons at the Bernabeu.
450 – Ronaldo’s Real Madrid-record goal tally, in 438 games.
17 – his record goal tally for a Champions League season, in 2013/14.
105 – total Champions League goals for the club, which also included 16 in 2015/16 and 15 in the most recent campaign.
4 – Champions League titles with Real, including the last three in succession.
311 – goals in La Liga.
2 – La Liga titles, in 2011/12 and 2016/17.
16 – major trophies with the club, also including two domestic cups, two domestic and three European Super Cups and three Club World Cups.
4 – Ballon d’Or awards won with Real, making five in total after he was first recognised as the world’s best player in 2008 when he was with Manchester United.
44 – hat-tricks for Madrid including a club-record 34 in La Liga. Two came last season, against Girona and Real Sociedad in the league.
8 – the Girona game marked the eighth time he had scored four or more goals in a Real match. That included five-goal league hauls against Granada in 2014/15 and Espanyol the following season.
8 – his first three goals in that 9-1 win over Granada came in eight minutes, equalling the club record for the quickest ever hat-trick.
61 – his most prolific season for Real came in 2014/15 with 61 goals in all competitions, including 48 in the league. It was the second time he hit 60 for a season.
£80m – fee paid by Real to sign Ronaldo from United in 2009. At the time it was a world record.
£92.7m – the reported fee paid by Juve sees Real make a profit in raw terms.
658 – career goals for Real, United (118), Sporting Lisbon (five) and Portugal (85).
It is understood a deal worth £105m has been reached between the two clubs that will see the 33-year-old Portuguese end a 10-year stay at the Bernabeu, where he won four Champions League titles, but endured a turbulent relationship with president Florentino Perez.
“For Real Madrid Cristiano Ronaldo will always be one of our great symbols,” said a club statement.
“Real Madrid wants to express its gratitude to a player who has proved to be the best in the world and who has marked one of the brightest times in the history of our club and world football. Real Madrid will always be your home.”
Following the stunning news, check out the best early Twitter reaction:
Benvenuto a Torino, Cristiano 🏴🏳 We had a great time together in Madrid, I can‘t wait to get back to work with you! Today is a special day for @juventusfc! 💪🏽 #FinoAllaFine #ForzaJuve #SK6 @cristiano pic.twitter.com/iU4ULPeHmg— Sami Khedira (@SamiKhedira) 10 July 2018
BREAKING:— Piers Morgan (@piersmorgan) 10 July 2018
Cristiano Ronaldo signs for Juventus in a £105m deal.
.@Cristiano, your goals, your numbers and everything we've won together speak for themselves. You have earned a special place in the history of @RealMadrid. As Madridistas we'll remember you always. It's been a pleasure to play alongside you, bicho. Big hig and good luck! 🍀👍🏻 pic.twitter.com/NaywaDd3gw— Sergio Ramos (@SergioRamos) 10 July 2018
10 - Cristiano Ronaldo scored 10 Champions League goals against Juventus, more than any player has netted against a single opponent in the competition's history (incl. European Cup). Lady. pic.twitter.com/gu3YeXhNph— OptaJoe (@OptaJoe) 10 July 2018
The last time Ronaldo visited Juventus, he received a standing ovation 🚲 pic.twitter.com/e3faw5ACeq— FOX Soccer (@FOXSoccer) 10 July 2018