 The transfer fee was reportedly between 10 and 15 million Krone.Nilsson made his Utrecht debut in the opening game of the season, where he made his first start and played a whole game, in a 0–0 draw against VVV-Venlo, keeping a clean sheet.However, in a 2–1 loss against Vitesse on 20 August 2011, Nilsson received a straight red card in the 86th minutes.