The 23-year-old has joined the Old Lady on loan from French side Le Mans.
“Juventus, AC Milan and Inter are the three biggest Italian teams and among the five best clubs in the world. That’s why I am proud to be here at Juventus,” Estigarribia told the club’s official website.
“I know that the club has won a lot, both on national and international level. There are great players here who have won the Champions League and the World Cup. Juve are a club with a great tradition.
“Now it is down to me to show why I am at Juve. I have to do my utmost to make the most of this opportunity and use it to grow as a player and as a human being.”