The 1990-91 season saw Sampdoria win the Serie A title for the first time in their history, finishing five points ahead of second placed Milan. Third placed Internazionale were victorious in the UEFA Cup, with ninth-placed Roma compensating for their sub-standard league season with glory in the Coppa Italia, while Juventus's seventh-placed finish meant that they would be without European action for the first season in three decades. Lecce, Pisa, Cesena and Bologna were all relegated.
S.S. Lazio finished in fifth in Serie A and reached the quarter-final in the Coppa Italia. Prior to the season had Lazio with new Chairman Sergio Cragnotti made three important signings, with Paul Gascoigne, Giuseppe Signori and Aron Winter all joining the club.
S.S.C. Napoli won its first Serie A title with recently crowned World Cup winner Diego Maradona as their most influential player. Central defender Ciro Ferrara got his breakthrough, helping out the team to win the trophy. The two new signings Andrea Carnevale and Fernando De Napoli also proved crucial in the title-winning campaign, which sparked off fanatical celebrations in Naples.
U.C. Sampdoria had its most successful season ever, winning the Coppa Italia and reaching the final of the Cup Winners' Cup, where it came up short to Barcelona with 2–0. It finished fifth in Serie A with 14 goals from Gianluca Vialli marking the international breakthrough for the striker.
S.S.C. Napoli won an international trophy for the first time, defeating Stuttgart 2-1 and drawing 3-3 in the two-legged final. Napoli did not match Inter in the domestic league, but recorded a second place, its fourth consecutive podium finish in the final standings.
Juventus Football Club finished in 4th place in Serie A and participated in the Coppa Italia.
S.S.C. Napoli won their second ever Italian championship, thanks to a new club record in points scored over the course of the season. Diego Maradona scored 16 of the side's 57, whilst the contributions of other players such as Careca and Gianfranco Zola gave Napoli enough of an attacking edge to claim the title.
U.C. Sampdoria won their first ever Serie A title, thanks to a remarkable season for a team playing at its absolute peak. Gianluca Vialli was the league top scorer on 19 goals, and Roberto Mancini, Attilio Lombardo, goalkeeper Gianluca Pagliuca plus centre half Pietro Vierchowod were also instrumental in Sampdoria's success story.
AC Milan did not defend their European Cup title for a second consecutive time. The second place in Serie A was the fourth consecutive season when Milan finished inside the top three of the league. The loss in the European Cup quarter-finals rendered a first trophyless season since 1987, which resulted in Arrigo Sacchi leaving his job to take over the national team, being replaced by ex-Juventus and AC Milan midfielder Fabio Capello.
Associazione Sportiva Roma won the Coppa Italia and reached the final of the UEFA Cup, which compensated for Ottavio Bianchi's problematic league season, where Roma finished a mere 9th place, their worst season since 1979.
Juventus Football Club had their least successful season since finishing 12th in the Serie A back in 1961–62. This time, under Luigi Maifredi's coaching, Juventus finished 7th, despite breaking the world record in terms of transfer fee, to bring in Fiorentina star striker Roberto Baggio. Being long involved in the Scudetto race, Juventus lost the plot in the second half of the season, barely winning a match in a ten-game spell, which caused the side to drop down to the upper midfield.
The 1990–91 season was Parma Associazione Calcio's 78th in Italian football and their first ever season in the Serie A. It was Nevio Scala's second year at the club, as Parma achieved promotion the previous season, by finishing in fourth place. In their first season, they finished in sixth place, before securing a UEFA Cup spot. In the Coppa Italia, they were eliminated 2–0 on aggregate by Fiorentina in the second round, after two legs. Alberto Di Chiara, who went on to join the club the same season, and Stefano Borgonovo scored the goals.
The 2014–15 Coppa Italia, also known as TIM Cup for sponsorship reasons, was the 68th edition of the national domestic tournament. Napoli were the defending champions, having won the previous year's final, but were eliminated in the semi-finals by Lazio. Juventus emerged victorious with a 2–1 win in extra time, earning a record tenth title.
The 2015–16 Coppa Italia, also known as TIM Cup for sponsorship reasons, was the 69th edition of the national domestic tournament. It began on 2 August 2015 and ended with the final match on 21 May 2016. Juventus successfully defended their title after beating Milan 1–0 by Morata's goal after extra time. This win secured them a record eleventh cup title.
The 2017–18 Coppa Italia, also known as TIM Cup for sponsorship reasons, was the 71st edition of the national domestic tournament. As a minimum, the winners of the Coppa Italia earn a place in the 2018–19 Europa League and would begin play in the group stage unless they qualify for a more favourable UEFA placing based on league play. Seventy-eight clubs participated in this season's cup competition.
The 2019–20 Coppa Italia was the 73rd edition of the national cup in Italian football.
The 1990–91 season was the 91st season in the existence of S.S. Lazio and the club's third consecutive season in the top flight of Italian football. In addition to the domestic league, Lazio participated in this season's edition of the Coppa Italia.
