In the summer of 1998, Prodan joined Rangers (a club against which he had scored a memorable goal for Steaua in the UEFA Champions League in 1995) for £2.2 million, but made no first-team appearances in two-and-a-half years in Scotland due to a serious knee injury, which he sustained whilst with the "Colchoneros". Rangers' doctor, Stewart Hillis, later revealed that no medical had been conducted, and the transfer was rushed to completion on the strength of falsified documents; the Glasgow club threatened to sue Atlético Madrid, but backed down and released the player in January 2001.