Vialli joined Chelsea in the summer of 1996 for $1million a year (after rejecting an offer from Rangers) as part of manager Ruud Gullit's cosmopolitan rebuilding of the side, and won the FA Cup in his first season, including two goals in a spectacular 4-2 comeback over Liverpool in the fourth round, but 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 cameo appearance as a late substitute. During the 1997-98 season, he scored four goals in a win over Barnsley and a hat-trick against Norwegian side Tromsø in the Cup Winners' Cup, but still couldn't cement his place in the side.