Chelsea's head coach Enzo Maresca has expressed his frustration over the club's decision to sell academy star Conor Gallagher to Atletico Madrid for £33 million, citing Premier League Profit and Sustainability (PSR) rules that compel clubs to sell young talent. Gallagher, who has rejected contract extensions from Chelsea, is expected to undergo a medical in Spain this week. Maresca argues that the current rules force clubs like Chelsea to offload academy players to balance financial accounts, which he believes undermines the promotion of homegrown talent. He lamented the lack of 'one-club men' in football, contrasting the situation with Italy's Francesco Totti, who spent his career at Roma. Maresca's comments follow a trend of academy graduates leaving Chelsea, including Ruben Loftus-Cheek and Mason Mount, as the club aims to manage its financial position after significant spending. The head coach called for a revision of the rules to better protect young players in the future.