When Sheikh Mansour took control of Manchester City in September 2008, the club was still a modest side with only two top‑flight championships in its 114‑year history. The most recent league triumph had come forty years earlier, and the team had just finished the 2007/08 campaign in ninth place, a full 32 points adrift of champions Manchester United.

That season ended on a sour note with an 8‑1 defeat to Middlesbrough, which turned out to be Sven‑Göran Eriksson's final match as City manager. The club's recent past was far from glamorous. In the Premier League era it had suffered three relegations and, only a decade earlier, had briefly slipped into the third tier of English football.

The league’s dominant clubs – Manchester United, Chelsea and Arsenal – had hoarded the Premier League titles, leaving City outside the conversation. No one could have foreseen the dramatic turnaround that would follow. Over the nine‑year window examined by the Premier League’s independent investigation, City captured three Premier League crowns, more than doubling their historic tally and establishing themselves as a new football powerhouse.

Behind that meteoric rise, however, the commission uncovered serious breaches of the league’s financial regulations. It identified a series of “sham” contracts with commercial partners and an artificial inflation of revenue by roughly £830 million. Potential penalties range from hefty fines and transfer bans to possible expulsion from the league, with some voices even demanding that the club’s titles be stripped.

City have denied any wrongdoing and have signalled their intention to appeal. The report labels the irregularities a “disguised funding scheme”. In essence, the Abu Dhabi United Group – the owners of the club – paid enormous sponsorship sums that were recorded as commercial income, thereby creating a financial cushion that allowed City to embark on an unprecedented spending spree.

From the summer of 2009 through to the January 2018 transfer window, the club shelled out about £1.2 billion on player acquisitions, according to Transfermarkt. That figure outstripped the next‑biggest spender, Chelsea, by nearly £300 million (Chelsea’s total was £931.7 million).

City’s net spend of £888.2 million dwarfed Manchester United’s £513.1 million, highlighting the scale of the investment. Year after year the pattern was clear: City topped the Premier League in total transfer outlay in five of the nine seasons under review and led the league in net spend in six of those years.

The club’s recruitment list reads like a who’s‑who of modern football talent. The first major haul that set the stage for future success came in the two seasons before their 2011/12 title – the first league crown in 44 years – when the club spent £260.5 million on players such as Carlos Tevez, Edin Džeko, Yaya Toure, David Silva, Mario Balotelli and James Milner. Subsequent seasons saw the arrival of further marquee names: Sergio Agüero, Samir Nasri, Fernandinho, Jesús Navas and Eliaquim Mangala arrived over the next four campaigns, while the 2015/16 window introduced Kevin De Bruyne and Raheem Sterling, both of whom would become central to City’s style of play.

The peak of the spending spree occurred in 2017/18, a season that delivered City’s third Premier League title of the period. That year the club invested £282.5 million in new talent, adding Aymeric Laporte, Benjamin Mendy, Kyle Walker, Bernardo Silva and goalkeeper Ederson to an already star‑laden roster. During the same period, the sponsorship fees paid by the Abu Dhabi United Group rose steadily for four consecutive seasons, reaching £134.7 million in 2017/18 – a stark increase from the £22.5 million recorded in 2009/10. The commission’s analysis shows that the £830 million falsely logged as commercial revenue between 2009/10 and 2017/18 represents roughly 70 percent of City’s total £1.2 billion transfer expenditure.

This financial firepower also enabled the club to attract three elite managers – Roberto Mancini, Manuel Pellegrini and Pep Guardiola – each of whom benefited from the deep pockets at their disposal. Under their stewardship, City added an FA Cup, three League Cups and a Community Shield to their trophy cabinet, making the 2008‑2018 era the most successful in the club’s history.

A visual representation of City’s league finishes over the decades underscores how pivotal this era was. The club’s trajectory shifted from mid‑table obscurity to consistent top‑three finishes, a pattern that has persisted for 16 seasons with only a single slip outside the top three. Today, Manchester City sit eighth in the all‑time Premier League title rankings, trailing only Manchester United and surpassing both Chelsea and Arsenal.

When pre‑Premier League titles are counted, City join an elite quartet – Manchester United, Liverpool and Arsenal – as the only clubs to have reached double‑digit league championships. Nevertheless, the commission’s findings cast a shadow over those achievements, suggesting that the transformation of English football’s hierarchy may have been underpinned by financial practices that contravene the sport’s regulatory framework. The ongoing legal battle will determine whether the club’s honours stand or are subject to retroactive sanctions, a development that could reshape the narrative of one of football’s most dramatic turnarounds.