In the 2003–04 season, Wolf became a first team regular during Nürnberg's successful promotion campaign, playing in 31 of 34 games. At the start of the season, he was involved in the first team for the first six matches until his sending off for a second bookable offence, in a 1–1 draw against Greuther Fürth on 22 September 2003. He remained in the first team with his performances earning him a new contract until 2006. He scored his first Nürnberg goal on 2 April 2004, in a 2–1 loss against Jahn Regensburg.