Juventus completed the transfer of Merih Demiral from Sassuolo on an €18m move the Serie A club revealed on the official club website.
The Italian giants will pay the €18m fee over a period of four financial years.
Demiral will sign a five-year contract with Juve which will keep him at the club until June 30, 2024.
The 21-year-old has become the first Turkey international to join Juventus but is one of a growing number of Turks in the Serie A joining Roma starlet Cengiz Under and AC Milan attacking midfielder Hakan Calhanoglu.
The young defender will join fellow Turk Emre Can at Juventus who is a Germany international of Turkish origin.
Demiral shared the following clip on his official Twitter account that his representatives put together following the deal being announced by Juve.
— Merih Demiral (@Merihdemiral) July 5, 2019
Demiral has enjoyed a meteoric rise over the past few years.
The powerful centre-back took a risk three years ago joining Alcanenense in the Portuguese third tier from Fenerbahce in 2016 before moving to Alanyaspor last summer.
Sassuolo snapped him up in January where he impressed in the Serie A attracting the attention of Juventus.