During the 1997–98 season, Vialli scored four goals in a league win over Barnsley and a hat-trick against Norwegian side Tromsø in the Cup Winners' Cup, but still could not cement his place in the side under Gullit. However, following Gullit's dismissal in early 1998, Vialli assumed the role of a player-manager, winning the Cup Winners' Cup in 1998, and the League Cup. He followed these victories up by a 1–0 victory over UEFA Champions League winners Real Madrid in the 1998 UEFA Super Cup.