Manchester City's £900m net transfer spend between 2009-2018 reshaped the market, but the financial windfall did not consistently benefit recipient clubs. While the spending raised prices globally, teams like Wolfsburg and Monaco struggled after selling key players to City. Arsenal, the top seller to City, failed to win the Premier League during that period. In Portugal, Benfica and Porto prospered from City payments, while Sporting did not.
Only two of the top 12 recipient clubs won major trophies within four years of their sales. Sell-on clauses also distributed funds indirectly, such as Queens Park Rangers earning £9m from Raheem Sterling's move.
Source: BBC Sport Football · Summarized by HeadlinesBriefing