The official website of Milan announced the acquisition of left-back Wolfsburg Ricardo Rodriguez.
24-year-old Swiss signed with Milan a four-year contract.
The amount of the transfer was not disclosed, but according to the media it was 18 million euros plus four million euros as bonuses.
Rodriguez moved to Wolfsburg from Zurich in the winter of 2012.
Since then, he spent 184 matches for Volkov in all tournaments, which scored 22 goals.
"I would like to thank Wolfsburg, all the fans, teammates and club staff for unforgettable and very successful times," said Rodriguez.
"Together we have experienced a lot. Here I became the best player and person, always felt comfortable and made a lot of friends. Nevertheless, now it's time for me to take the next step in my career ".
As part of Wolfsburg, the Swiss won the German Cup 2014/15 and the German Super Cup 2015.