At club level, Galderisi played for several Italian teams throughout his career, scoring almost 200 goals across the various divisions of Italian football. A
Juventus youth product, he began his professional career with the
Juventus senior side, making his club debut on 20 August 1980, in a 2–2 draw against Udinese in the Coppa Italia; he made his
Serie A debut with the club in a 0–0 away draw against
Perugia, on 9 November 1980, his only league appearance of the
1980–81 season. Although he struggled to find the back of the net consistently with Juventus, he scored decisive goals during the
1981–82 season, including a hat-trick in Juventus's 3–2 home victory over
Milan on 14 February 1982, as the Turin side captured the league title. During the
1982–83 season, he also won the
Coppa Italia with Juventus and reached the
1983 European Cup final. In total he scored 6 goals in 16 appearances for Juventus. After a spell of mixed success with Juventus, he joined provincial side
Hellas Verona in 1983, where his goalscoring form improved; during the
1984–85 season, he established himself as one of the top strikers in the league, and was the Verona's top scorer with 11 goals as he helped the club win their historic first ever Serie A title. In 1986, he joined Milan (1986–87), and later played for
Lazio (1987–88), and also had a second spell with Verona (1988–89), although he failed to replicate his form from previous seasons due to several injuries. After moving around between several different clubs, he joined
Padova in 1989, where he remained until 1995, and had several positive seasons with the club in
Serie B. Galderisi had been recommended to New England manager
Frank Stapleton by his former Milan teammate
Ray Wilkins. With the Revolution, Galderisi would be joining his former Padova teammate
Alexi Lalas, who had also been allocated to the club. Stapleton described Galderisi as a "proven goal-scorer who is a championship veteran of the Italian League. This aggressive and internationally experienced forward will be a vital piece in constructing a complete football team in New England." He made his first start the following week, in the club's first-ever win, on 20 April against the
MetroStars, and his home debut on 27 April against
D.C. United in the club's first-ever home match.
Tampa Bay Mutiny Galderisi signed with the Tampa Bay Mutiny mid-way through the
1996 Major League Soccer season and had substantially more success than he had in New England, making 19 starts for his new club, scoring seven goals and tallying eight assists in the
1996 Tampa Bay Mutiny season, ultimately helping the club to the first-ever MLS
Supporters' Shield, a trophy given to the team with the best regular season record. Galderisi made 15 starts for Tampa Bay in the 1997 season, recording five goals six assists, and earning a spot in the
1997 MLS All-Star Game, in which he scored a 63rd-minute goal in the MLS East's 5–4 win.
Return to New England Following Stapleton's resignation at the end of the
1996 New England Revolution season, the Revolution hired
Thomas Rongen as their new manager. Rongen, who had coached Galderisi in Tampa, pushed for a trade that would reunite Galderisi with his Tampa teammate
Ivan McKinley, and on 13 August 1997 Galderisi was traded back to the Revolution (along with McKinley), in exchange for
Chiquinho Conde and
Sam George. Galderisi made seven regular season appearances for the Revolution upon his return (recording two assists), and additionally appeared in both of the club's playoff matches against
D.C. United. He was again placed on waivers by New England on 11 November. == International career ==