He spent the first decade of his playing career playing in Italy, most notably with Napoli, alongside Diego Maradona and Careca, where he was able to win the Serie A title, and at Parma, where he won the Italian Super Cup and the UEFA Cup. He later moved to English side Chelsea, where he was voted the Football Writers' Player of the Year in the 1996–97 season. During his time at the club, he won the UEFA Cup Winners' Cup, the UEFA Super Cup, two FA Cups, the League Cup, and the Community Shield. In 2003, he was voted Chelsea's greatest player ever. He was capped 35 times for Italy from his debut in 1991, appearing at the 1994 World Cup, where Italy finished in second place, and Euro 1996.