Cagliari

Cagliari became the first ever out-right champions of Serie C during the 1951–52 season; prior to that in the league, the championship was shared amongst more than one team. They spent the 1950s from then on in Serie B, losing a promotion play-off in 1954. After descending to Serie C in the early 1960s, Cagliari's rise would be meteoric, eventually achieving promotion to Serie A in 1964.

The squad for the Rossoblu's debut season in Serie A featured players like defender Mario Martiradonna, midfielders Pierluigi Cera, Nené and Ricciotti Greatti, and forward Gigi Riva. A poor first half of the season, however, saw Cagliari in last place with nine points at the halfway mark. An astonishing second half of the season saw Cagliari defeat the likes of Juventus and Milan and finish in seventh place with 34 points. Two seasons later, Riva finished as Serie A's top scorer for the first time while Cagliari finished with the league's best defensive record.

During the summer of 1967, Cagliari played a season in North America as part of a fledgling league called the United Soccer Association. This league included teams from Europe and South America set to play in American and Canadian cities, with each club bearing a local name. Cagliari played as the Chicago Mustangs, and finished joint second in the league's Western Division with 13 points, two behind the division champion and eventual league champion Los Angeles Wolves. The league's leading scorer was Chicago/Cagliari's Roberto Boninsegna, who scored ten goals while playing in 9 of the team's 12 games.

Cagliari first emerged as serious Serie A title contenders in 1968–69 with a three-horse race involving them, Fiorentina and Milan. Fiorentina would win the league, but the following season would bring ultimate glory. With Angelo Domenghini joining the side, Cagliari would win the title in 1970 with only two games lost, 11 goals conceded (the fewest in any major European league to date) and Riva as league top scorer once more. Players like Albertosi, Niccolai, Boninsegna, Gori, Cera, Domenghini and Riva played in Italy's 1970 World Cup final team.

The 1970s would see a gradual decline (though were title contenders two years after their one and only Scudetto win). Cagliari were finally relegated in 1976, with Riva's career having effectively ended during that season.

After relegation, Cagliari lost a play-off for promotion the following season and would return to Serie A in 1979. Players like Franco Selvaggi, Mario Brugnera (a survivor of the 1970 team) and Alberto Marchetti ensured a respectable four-year stay in the top flight before a second relegation in 1983. The 1980s would then prove to be a darker time compared to the previous two decades with relegation to Serie C1 in 1987.

Cagliari spent two seasons in Serie C1. In the first one it barely avoided relegation in Serie C2. In 1988, Claudio Ranieri was appointed coach, and led the team to two successive promotions, to Serie B in 1989 and to Serie A in 1990. The first two seasons back in Serie A saw Cagliari fight relegation, with safety being achieved by excellent second half runs. But the 1992–93 season would see Cagliari fight for a European place and succeed under the management of Carlo Mazzone. The following season saw a best-ever run to the semi-finals of the UEFA Cup, taking out Juventus in the quarter-finals before being eliminated 5–3 on aggregate by compatriots Internazionale, having won the first leg 3–2 at home.

The next few years would see Cagliari return to mid-table anonymity, before a struggle in 1996–97 saw Cagliari relegated after losing a play-off to Piacenza. Once more they bounced back after just one year, but their next stay in Serie A lasted just two seasons.

Cagliari spent the next four seasons in Serie B, until in 2003–04 with Sardinian-born veteran striker Gianfranco Zola, the team won promotion. In 2005–06, the first season without Zola, the team changed their manager three times before Nedo Sonetti, appointed in November, was able to save the team from relegation, especially thanks to the excellent goal contribution from Honduran striker David Suazo.

Apart from finishing 9th in 2008–09 season, Cagliari regularly finished in the bottom half of Serie A under a sequence of managers, before being relegated in 2014–15. They gained promotion back the following season as champions of Serie B.

In 2014, the company passed, after 22 years of Massimo Cellino's presidency, into the hands of Tommaso Giulini, president and owner of Fluorsid, a multinational in the chemical sector. Relegation took place in the first season, but the team won the Serie B championship in 2016, returning permanently to the top division, albeit always finishing in the second half of the table. Cagliari was relegated at the end of the 2021–22 season. They reappointed Claudio Ranieri halfway through the 2022–23 season with the club in fourteenth place. Under Ranieri's management, Cagliari won the 2022–23 Serie B playoffs.