Complex sentence: On 18 July 2007 he was loaned to VfL Wolfsburg until summer 2009 and on 11 August 2008 Gentner was signed fully to Wolfsburg.
Split into simpler sentences: On 18 July 2007 he was loan to VfL Wolfsburg until summer 2009. On 11 August 2008 Gentner was signed fully to Wolfsburg.