FC Koln have completed the signing of midfielder Milos Jojic from Borussia Dortmund on a four-year contract.
The 23-year-old joined Dortmund from Partizan Belgrade last year but was unable to establish a regular starting role at the club, making just 27 appearances in all competitions over two seasons.
He has now switched to Dortmund's Bundesliga rivals Koln for a fee believed to be around £2.1m.
"Milos Jojic is a talented player who has already been able to measure himself up to the best in Europe and prove himself," Koln general manager Jorg Schmadtke told the club's website.
"He's versatile and hits good set pieces. Furthermore, he knows the Bundesliga and has already proven his qualities at the highest level."
Jojic has also made five appearances for the Serbian national team, scoring one goal.