Center back who joined Shalke 04 in 2007. He debuted with the German national team in 2011 and helped the team capture a World Cup Championship in 2014.
He scored his first goal in international competition on August 15, 2012 in a friendly match against Argentina.
He joined fellow defender Philipp Lahm on the German national team in 2011.
He began his youth career with TuS Haltern in 1994.
He was born in Haltern, West Germany.