He began playing football at Rosenhøj BK in Denmark, after that he played for Danish clubs Hvidovre IF and Brøndby IF. The midfielder made his debut for Ajax on 17 September 2006 in the league match Roda JC - Ajax (2-0). Krohn-Dehli played for a number of Danish clubs before joining Ajax from Brøndby IF. Krohn-Dehli excelled as a youth team player for Ajax under Danny Blind. In 2004 however, he was allowed to leave Ajax by manager Ronald Koeman and he joined RKC Waalwijk on a free transfer. T