When he played the full match in Denmark's 4–1 win over England on 17 August 17, Priske aroused the interest of several Premiership club and he joined Portsmouth five days later for an undisclosed fee, signing a three-year deal. Priske was given a good run in the Portsmouth side by Alain Perrin, but after Perrin was sacked that November Priske was dropped by returning manager Harry Redknapp. Many Portsmouth supporters assumed that this was because of Redknapp's disdain of using players he himself had not purchased, and speculation was rife in the January transfer window that Priske would be leaving the club.