Pretty crazy news! Should they win the Champions League he'd become only the second player to win it with 3 clubs (after Clarence Seedorf) and only the second player to win it 6 times (after Francisco Gento). Juve already had a pretty good team, so I wouldn't be shocked if it happens.
Losers in this are La Liga for losing the "Messi vs. Ronaldo" angle and everyone else in Serie A (poor Napoli
). Definitely a great move by Juventus to sign such a "global superstar," and arguably a good deal for Real Madrid to cash in on him and be able to build a team out of Isco, Asencio, Kroos, and whatever big-name player they choose to be the new "Galactico," instead of waiting until he's over the hill. (Then again when they finish 3rd in La Liga and get knocked out in the UCL quarterfinals while Ronaldo is tearing it up in Italy it'll look terrible, but that's #rebuilding for you
)