On 22 November 2008, Muntari scored the winner, redirecting a wayward Zlatan Ibrahimović shot, in the "Derby d'Italia" against rivals Juventus. Two weeks later, Muntari scored a backheel goal against Napoli at the San Siro after a great cross from Maicon, a match that ended 2–1 for Inter. In the very last Serie A match of the season, on 31 May 2009 against Atalanta, he opened the scoring for Inter after blasting in a Luís Figo cross from outside the penalty box. Later, his shot on goal was parried by the goalkeeper, but Esteban Cambiasso scored from the rebound to make the score 3–3. Inter eventually won 4–3 and Muntari won his first "Scudetto" after his first season with the club.