[2] IFK Norrköping were most successful during the 1940s, when they won five Swedish championships and two Svenska Cupen titles under the Hungarian coach Lajos Czeizler and with players like Gunnar Nordahl and Nils Liedholm.IFK Norrköping won the 2015 Allsvenskan, their first win since 1989, which also gave them a spot in the second qualification round of 2016–17 UEFA Champions League.IFK Norrköping dominated Swedish football in the post war era and won the first division 11 times in 20 years, culminating in the league triumph of 1963.IFK Norrköping also maintains a rivalry with Malmö FF; the fixtures between the clubs is sometimes known as "The Working Class Derby"[citation needed] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.