Ex-Chelsea winger Diego Moreira has completed a £56million move from Strasbourg to AC Milan.The 22-year-old has penned a five-year deal that sees him join Ruben Amorim‘s side in a club-record sale for Strasbourg.Moreira has signed a five-year deal through to 2031 at the San SiroGettyThe exit fee smashes the Ligue 1 side’s previous record departure of £30m, which saw Dilane Bakwa join Nottingham Forest last summer.Moreira’s move comes just two years after Chelsea sold the Belgian international to their sister club for a fee of £1.7m.However, the Blues are in line to benefit from his latest transfer, as talkSPORT understands they are set for a cash windfall.A sell-on clause is understood to have been included in the wide man’s Stamford Bridge departure in 2024.As a result, Chelsea can expect a meaningful sell-on fee, although the exact percentage is not currently clear.Remarkable transformationFew would’ve expected Moreira to command such a huge fee when he left Stamford Bridge after a forgettable year in west London.He joined the Blues from Benfica on a free transfer in 2023 but struggled to make an impact in the capital.Moreira made just one senior appearance for Chelsea, coming off the bench in a Carabao Cup win over AFC Wimbledon, and also spent time on loan at Lyon.But after swapping London for Strasbourg in 2024, the four-cap Belgium international has since rebuilt his career.Under the management of Liam Rosenior, he established himself as a highly-rated attacking talent.Moreira left Chelsea without making a Premier League appearanceGettyBut the Belgian then enjoyed a resurgence under Liam Rosenior at StrasbourgAFPThe versatile wide man was an ever-present in his first year in France, making 32 league appearances as Strasbourg finished seventh, which earned Conference League qualification.Moreira’s improved form continued last term, even after Rosenior’s ill-fated departure to Chelsea in January.He featured 42 times in all competitions, scoring five times in an historic campaign, as Strasbourg reached their first ever European semi-final before being beaten by Rayo Vallecano in the last four of the Conference League.But after completing his big-money move to AC Milan, Moreira will have another opportunity to test himself in Europe.Now managed by ex-Manchester United boss Amorim, his side will compete in the Europa League in the upcoming campaign, having qualified via a fifth-place Serie A finish last term.The Italian giants will fancy their chances in the competition, with Moreira their latest statement signing this summer.Amorim was appointed AC Milan boss in June, six months after being sacked by Man UnitedGettyGoncalo Ramos has also arrived from Paris Saint-Germain for a reported club record transfer fee of about £60m.‘One of the best’One man who won’t be surprised by Moreira’s record-breaking move is European football expert Andy Brassell.The journalist highlighted the ex-Chelsea man’s rising stock at Strasbourg in October 2025, insisting he had made huge progress.Brassell told talkSPORT: “Diego Moreira, who was formerly at Chelsea, has really been transformed under Rosenior.“He was someone who went out from Chelsea on loan to Lyon, looked absolutely nowhere near ready for top-flight football.“Then a year later, he goes to Strasbourg, and all of a sudden, he’s one of the best wing-backs in the league because he changes his position.Moreira leaves Strasbourg having scored seven goals in 76 appearancesGetty“He’s so good, not just with the ball, but without the ball as well. His defensive awareness is fantastic now.“In terms of scoring and creating, the runs he makes, the awareness that he’s got when Strasbourg are out of possession, all of those parts of his games, really, Rosenior has absolutely transformed him. It’s amazing.”