Striker makes permanent switch to Bundesliga side.
Striker Ji Dong-won has joined Bundesliga side Augsburg on a permanent basis for an undisclosed fee.
The 22-year-old South Korean had a loan spell with the Bundesliga outfit last season, making 17 appearances and scoring five goals.
Ji joined Sunderland from Chunnam Dragons of the K-League in summer 2011 and made a total of 28 appearances for the Black Cats, scoring two goals.
Augsburg are currently eighth in the German top flight with 24 points from 17 games.