Midfielder who joined Galatasaray in 2012 after spending a year with Real Madrid. He became a member of the Turkish national team in 2004.
He debuted professionally with Wattenscheid 09 in 2000.
He appeared in 113 matches for Schalke 04 between 2003 and 2007 and 63 matches for Bayern Munich from 2007 to 2011.
He was born in Gelsenkirchen, Germany.
He and Emre Belozoglu became teammates on the Turkish national team.