Paris Saint-Germain Diaby is a product of the
Paris Saint-Germain Academy. He joined the club when he was 13 and began playing for the B team in 2017. Diaby was the recipient of the 2016
Titi d'Or as the most promising and best talent in the Paris Saint-Germain academy.
Loan to Crotone Not used by PSG head coach
Unai Emery in the first half of the season and suspended for eight matches due to a foul play in a match for the
Under-19 national league, Diaby resolved to be loaned to
Crotone in
Serie A during the winter break. He scored a goal and provided an assist in his first match with the reserve team. Present on the bench for the first team in the following weeks, he made his professional debut on 14 April against
Genoa, coming on with eight minutes remaining.
Return to PSG Missing part of the preparation due to the
2018 UEFA European Under-19 Championship, Diaby rejoined Paris Saint-Germain during the summer tour. This gave him the opportunity to play his first matches with the professional team, scoring his first goal in a friendly against
Atlético Madrid and winning the
2018 Trophée des Champions, although he did not play in the match. Initially, a new loan to
Montpellier or
Real Sociedad was considered, but the new Parisian coach
Thomas Tuchel decided to keep Diaby at the club. On 14 September 2018, Diaby, who replaced
Lassana Diarra at halftime, scored for PSG in the 86th minute in a 4–0 win over
AS Saint-Étienne. He became the 124th academy graduate to feature for the senior side. Diaby went on to make 25
Ligue 1 appearances in
2018–19, scoring four times across all competitions and averaging an assist every 190 minutes during the club's successful title defence. and a resale percentage (20%) for Paris Saint-Germain. After five substitute appearances, the international hopeful played his first match as a starter against
SC Freiburg in November, where he shone with his speed and scored his first goal in Germany during a 1–1 draw. From then on, he became a regular starter in
Peter Bosz's team. Diaby extended his contract for an additional season with a salary increase. Since 20 November 2019, the international hopeful had not missed any matches in the Bundesliga. By mid-April, his team was no longer in the title race but was competing for qualification for European competition, and Diaby contributed with an assist and a goal in a 3–0 win against
1. FC Köln. In all competitions, he scored ten goals and provided thirteen assists. At the beginning of September 2021, at the time of his first selection for the
France national team, Diaby was directly involved in 44 goals (20 goals, 24 assists) in 85 appearances for Leverkusen across all competitions, averaging more than one contribution every two matches. A month later, having been called up for the French team for the second consecutive time, he had three goals and one assist in nine matches for Leverkusen at the start of the 2021–22 season. reuniting with former PSG manager Unai Emery. On 27 July, Diaby scored minutes after coming on as a substitute in a 2–0 pre-season victory over
Fulham in the
Premier League Summer Series in the United States. On 12 August, he scored a goal on his Premier League debut in a 5–1 away defeat against
Newcastle United. A goal that Diaby scored on 30 March 2024, in a 2–0 victory over
Wolverhampton Wanderers, was given the
Premier League Most Powerful Goal award, after being calculated by
Opta to have been traveling at 109.84 km/h at the time it reached the goal – faster than any other goal in the Premier League that season.
Al-Ittihad On 24 July 2024, after just one season in England, Diaby moved to
Saudi Pro League club
Al-Ittihad in a deal reportedly worth around €60 million. ==International career==