Paris Saint-Germain

Adli made his professional debut for Paris Saint-Germain (PSG) on 19 May 2018 in the final Ligue 1 match of the season against Caen. He replaced Christopher Nkunku after 83 minutes in a 0–0 away draw.^[4] On 2 July 2018, Adli signed his first professional contract with PSG.^[5]

Bordeaux

On 31 January 2019, the last day of the 2018–19 winter transfer window, Adli joined league rivals Bordeaux on a 4+1⁄2-year contract. The transfer reportedly involved a fee of €5.5 million and a 40% sell-on clause.^[6][7]

Adli scored against his former side Paris Saint-Germain in a 2–2 draw at the Parc des Princes on 28 November 2020.^[8]

AC Milan

On 31 August 2021, it was announced that Adli had signed for Serie A giants AC Milan on a five-year contract.^[9] The fee paid to Bordeaux was a reported €8 million.^[10] He was loaned back to the club for the remainder of the 2021–22 season.^[9]

In his first season at Milan, Adli had very little playtime and made just six sporadic appearances throughout the entire season, all of which were as a substitute in the closing minutes of games.^[11]

Despite these setbacks, however, he did not go to play elsewhere on loan, neither during the winter break, nor in the summer.^[12]

Ahead of the 2023–24 season, as Milan's primary formation changed from 4–2–3–1 to 4–3–3, Adli started to play in front of the team's defense as a holding midfielder or a deep-lying playmaker, providing an alternative to Rade Krunić, who had been considered a starter in this position at the time. However, as Krunić departed in the winter, Adli took his place in the starting XI.^[13]