Dundee United signed Szamotulski in July 2007 on a six-month contract to cover for the absence of his countryman Łukasz Załuska, who had broken a bone in his foot. He made his debut in a friendly against Barcelona on 26 July 2007. He was nicknamed "The Monk" by Dundee United fans due to his resemblance to the character from the film Mean Machine. Craig Levein admitted that Szamotulski would be leaving the club at the end of his six-month contract, as he had rejected a contract offered by Dundee United.
