Italian giants Juventus have signed Brazilian winger Douglas Costa from Bayern Munich on a permanent deal after a successful loan spell, the Italian champions announced on Thursday on Twitter.

Costa, 27, signed a four-year contract with the former European champions after they triggered the option to buy him from German champions Bayern Munich for a fee of 40 million euros.

The transfer fee will be paid over two years.

The Brazilian scored six goals in 47 competitive appearances during his season-long loan with Juventus, helping them to win the Serie A title and Coppa Italia.

Costa proved to be one of the most creative players in the Italian league, also providing 14 assists.