Cup in Vialli's first season, with the Italian scoring two goals in a 4–2 comeback over Liverpool in the fourth round. However, a feud with Gullit saw him regularly left out of the starting line-up; in the final itself he was limited to a five-minute appearance as a late substitute. 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 with a 1–0 victory over Champions League winners Real Madrid in the UEFA Super Cup. Vialli retired from professional football at the end of the 1998–99 season to focus on his position as Chelsea's manager. He made his last professional appearance in Chelsea's final match of the 1998–99 Premier League, scoring the winning goal against Derby County at Stamford Bridge. Managerial career Chelsea Gullit was sacked as Chelsea manager in February 1998 and 33-year-old Vialli was appointed player-manager, becoming the first Italian to manage in the Premier League. Chelsea were already in the semi-finals of the League Cup and the quarter-finals of the European Cup Winners' Cup, and went on to win both competitions under Vialli, as well as finishing fourth in the Premier League. In beating VfB Stuttgart at the Cup Winners' Cup final on 13 May 1998, at 33 years and 308 days old, Vialli became the youngest manager ever to win a UEFA competition. The record stood for thirteen years until 18 May 2011 when FC Porto's André Villas-Boas won the Europa League at the age of 33 years and 213 days. The following season Chelsea won the UEFA Super Cup by beating Real Madrid 1–0, and finished third in the Premier League, just four points behind champions Manchester United in what was Chelsea's highest league finish since 1970, when they also finished third. Vialli made his final competitive appearance for the club against Derby County at the end of that season (a game in which he scored), finishing his Chelsea career with 83 appearances and 40 goals. The following season saw Chelsea make their debut in the UEFA Champions League, where they reached the quarter-finals. After a 3–1