When Sheikh Mansour took control of Manchester City in September 2008, the club was still a modest outfit with just two top‑flight championships in its 114‑year history. The most recent title had been secured forty years earlier, and the team had just concluded the 2007/08 season in ninth place, a full 32 points adrift of champions Manchester United.

The campaign ended with a humiliating 8-1 defeat to Middlesbrough, which also marked the final match for manager Sven‑Goran Eriksson. At that point City’s recent record was far from glittering. In the Premier League era they had already suffered three relegations, and only a decade before they had briefly slipped into the third tier of English football.

The league’s dominant clubs—Manchester United, Chelsea and Arsenal—had claimed every Premier League crown since its inception, leaving City on the periphery of any serious discussion about title contenders. No one could have foreseen the dramatic reversal that would follow. Over the nine‑year window examined by the Premier League’s independent investigation, City amassed three league titles, more than doubling the number they had previously owned. The club had metamorphosed from a peripheral participant into a new powerhouse of English football.

However, the meteoric rise has not been without controversy. The commission’s report concluded that City breached financial regulations in a number of serious ways. Among the most damning findings were the use of sham commercial contracts and the artificial inflation of revenue by roughly £830 million. Potential penalties range from hefty fines and transfer bans to the extreme measure of expulsion from the Premier League, with some commentators even demanding that the club’s trophies be stripped.

City have denied any wrongdoing and have announced plans to appeal the findings. The report labels the irregularities a "disguised funding scheme". Essentially, the Abu Dhabi United Group—the owners of the club—paid enormous sponsorship sums that were recorded as commercial income.

This practice allowed City to fund an unprecedented wave of player acquisitions. According to data from Transfermarkt, between the summer of 2009 and the January 2018 transfer window, Manchester City spent about £1.2 billion on player purchases. This outlay was nearly £300 million more than the next highest spender, Chelsea, who spent £931.7 million in the same period. City’s net spend—£888.2 million—also dwarfed that of the next biggest spender, Manchester United, whose net spend was £513.1 million.

The scale of the spending becomes even clearer when viewed season by season. City topped the Premier League in total transfer outlay in five of the nine seasons covered by the inquiry and led the league in net spend in six of those years. The club’s recruitment strategy brought in a string of world‑class talents who would become pivotal to its success, beginning with the 2011/12 title‑winning campaign—the club’s first league triumph in 44 years.

In the two seasons preceding that historic win, City’s transfer budget amounted to £260.5 million. The arrivals during that window included high‑profile signings such as Carlos Tevez, Edin Džeko, Yaya Toure, David Silva, Mario Balotelli and James Milner. These players laid the groundwork for the club’s transformation from a mid‑table side to a genuine challenger.

The following four seasons saw further marquee acquisitions: Sergio Agüero, Samir Nasri, Fernandinho, Jesús Navas and Eliaquim Mangala joined the squad, reinforcing the team’s quality and depth. Spending surged again in 2015/16, when the club secured Kevin De Bruyne and Raheem Sterling—two players who would later become central figures in City’s tactical setup under Pep Guardiola.

The most lavish season within the investigative period was 2017/18. That year City spent £282.5 million on new players, including Aymeric Laporte, Benjamin Mendy, Kyle Walker, Bernardo Silva and goalkeeper Ederson. The investment paid off immediately, as City clinched their third Premier League title of the era.

During the same timeframe, the sponsorship payments from the Abu Dhabi United Group grew steadily. In 2009/10 the club received £22.5 million in sponsorship revenue; by 2017/18 that figure had risen to £134.7 million, marking four consecutive seasons of increase. The commission’s analysis indicates that the £830 million falsely recorded as commercial revenue between 2009/10 and 2017/18 represents roughly 70 percent of the club’s total £1.2 billion transfer spend. This financial firepower also enabled City to attract three elite managers—Roberto Mancini, Manuel Pellegrini and Pep Guardiola—each of whom benefitted from the club’s deep pockets to assemble squads capable of competing for every domestic trophy.

Beyond the league titles, City added an FA Cup, three League Cups and a Community Shield to their trophy cabinet during this period, making it the most successful era in the club’s history. A graphical representation of City’s league finishes over the decades highlights the stark turning point: from a club that once hovered around mid‑table to a dominant force that has consistently finished in the top three for 15 of the last 16 seasons.

Today, Manchester City sit second on the all‑time Premier League title list, trailing only Manchester United, and have overtaken both Chelsea and Arsenal in that ranking. When pre‑Premier League championships are taken into account, City join an exclusive group of four clubs—Manchester United, Liverpool and Arsenal—to have reached double‑digit league titles.

Nevertheless, the commission’s findings cast a shadow over these achievements, suggesting that the dramatic reshaping of English football’s hierarchy may have been underpinned by financial practices that breached the sport’s regulations. The club’s future will now be watched closely as they appeal the decision and as the governing bodies decide what, if any, sanctions should be imposed.