Bayern Munich have completed the signing of Manchester City defender Jerome Boateng on a four-year deal.
The 22-year-old arrived at City from Hamburg in 2010 but failed to win a regular starting place.
The Germany international left City's tour of North America last week to finalise personal terms.
Boateng, whose last game for City was on 2 March in the FA Cup fifth-round victory over Aston Villa, has left for an undisclosed fee.
After training with his new team-mates Boateng was introduced to the media. He said: "I've come here to make the defence more solid.
"It was important to me that Bayern had me marked in for a specific position. I believe it will end up with me playing at centre-back for the national team more often."
After a successful 2010 World Cup in South Africa, Boateng signed a five-year contract with City, but his first season was disrupted by injury and he was limited to 24 appearances.
Boateng was also played at right-back, rather than in his favoured central position, something that will change with his move to Germany.
Bayern's new manager Jupp Heynckes told the club's official website: "I have a very good impression [of Boateng]. He's fitted in with our training programme extremely well."
Bayern sporting director Christian Nerlinger added: "We're delighted we've succeeded in bringing him here. He was utterly determined to come here from the very start."