Complex sentence: He made his Bundesliga debut for VfL Wolfsburg on September 13,2008 in a game against Hertha BSC Berlin, he came on as a substitute for Christian Gentner in the 70th minute.
Split into simpler sentences: He made his Bundesliga debut for VfL Wolfsburg on 13 September 2008 in a game against Hertha Berlin. He was substituted on for Christian Gentner in the 70th minute.