Career
Neustädter began his career in 1. FSV Mainz 05"s youth team, before being promoted to Mainz 05 II in July 2006. After playing in Mainz"s first team during the 2008-2009 season, he signed a three-year contract with Borussia Mönchengladbach.
With die Fohlen, Neustädter enjoyed a particularly successful 2011-2012 season, finishing fourth and qualifying for the 2012-2013 Union of European Football Associations Champions League.
At the end of the 2011–2012 season, Neustädter left Mönchengladbach and joined Schalke 04 on a free transfer, signing a four-year contract running until 30 June 2016. Position
Neustädter switched positions between defensive midfielder and centre back.
While the former is his preferred position, he is currently mostly playing as the latter at Schalke 04. Neustädter played twice for Germany U-20, making his debut as a substitute against Italy U-20 on 9 April 2008.
He scored a goal against Switzerland U-20 on 22 April.
The Football Federation of Ukraine has stated its interest in calling up Neustädter for its national team Neustädter, who was born in Ukraine, has indicated that he would be likely to accept a call-up if asked. He would first require a Ukrainian passport in order to be eligible for national team duties.
On 9 November 2012, Neustädter was called up for the Germany squad to face the Netherlands five days later.
He made his debut for Germany in this match as a late substitute for Schalke team-mate Lewis Holtby. Neustädter is the son of Peter Neustädter, a former Kazakhstani football player for Mainz 05 and former manager of Mainz 05 World War II Neustädter was born in Dnipropetrovsk, Ukrainian Soviet Socialist Republic, while his father was playing for Dnipro Dnipropetrovsk.