 He helped lead the club from Serie B to Serie A in his first season, and was also a member of the side that won the club's first ever Serie A title during the 1984–85 season, under manager Osvaldo Bagnoli; in total, Di Gennaro made 182 appearances for Verona, scoring 18 goals.He later joined Bari in 1988, where he served as the team's captain, helping the team to obtain promotion to Serie A and winning the Mitropa Cup in 1990, before retiring in 1991, after helping the club avoid relegation.At international level, Di Gennaro earned 15 caps and scored 4 goals for the Italy national football team between 1984 and 1986, including playing in all four Italian matches at the 1986 FIFA World Cup, where Italy were eliminated by France in the round of 16.