Schalke have boosted their Bundesliga title hopes by bringing Brazilian striker Edu back to Germany.
The 28-year-old has returned from South Korea to sign a three-and-a-half-year deal with Schalke, who are a point behind league leaders Bayer Leverkusen.
Edu left his homeland for Germany in 2003, signing for Schalke's local rivals Bochum, and he scored 16 goals in two seasons before moving to Mainz in 2006.
But he scored just one goal in 14 appearances before leaving Mainz after only six months to join Suwon Samsung Bluewings.
Edu scored 26 goals in 73 games for the South Korean outfit, who were crowned K-League champions in 2008.
Schalke are currently at their winter training camp in Chiclana, Spain, where Edu will link up with his new team-mates and coach Felix Magath.
The Gelsenkirchen-based outfit went into the winter break on the back of three straight league wins.
Germany international Kevin Kuranyi is their leading scorer with eight league goals but has been linked with a move to England's Premier League in this month's transfer window.