Abdou Diallo

Monaco

Diallo joined the youth academy of Monaco at the age of 15. On 28 March 2014, he signed his first professional contract with the club. Vice-president of the club, Vadim Vasilyev commented that Diallo "fits perfectly into our sports project. He has a lot of talent and we hope that he will continue to progress alongside the great players of AS Monaco". On 14 December, he made his first team debut, coming on as a substitute for Bernardo Silva in the extra time of a 1–0 league victory against Marseille. In June 2015, Diallo was loaned out to Belgian club Zulte Waregem for the 2015–16 season. During his stint at the club, he was deployed at an attacking role, scoring three goals in 33 league matches. In December 2016, media reports emerged that Spanish club Real Betis was interested in signing him. Nevertheless, he made five league appearances during the 2016–17 season, with his side winning the league.

Mainz 05

On 14 July 2017, Diallo moved to Bundesliga club Mainz 05, and signed a five-year contract. On 9 September, he scored his first goal for the club in a 3–1 league victory against Bayer Leverkusen. During the season, he was deployed at both back three and back four; and had an 80% pass success rate. He started in 27 league matches during the season.

Borussia Dortmund

On 26 June 2018, Diallo joined Borussia Dortmund on a five-year deal for a fee of €28 million. In an interview, he said that Ousmane Dembélé advised him to join the club. On…

Diallo was born in France and is Senegalese by descent. He played for many youth teams of France, and even captained France's under-21s. On 17 March 2021, Diallo was called up to the Senegal national team for the first time. He made his debut in a 0–0 draw against Congo on 26 March. He was part of Senegal's squad for the 2021 Africa Cup of Nations; the Lions of Teranga went on to win the tournament for the first time in their history. Diallo was appointed a Grand Officer of the National Order of the Lion by President of Senegal Macky Sall following the nation's victory at the tournament. Diallo played in all four of Senegal's matches at the 2022 FIFA World Cup as the nation reached the round of 16 for the first time since its debut in 2002. In December 2023, he was named in Senegal's squad for the postponed 2023 Africa Cup of Nations held in the Ivory Coast.

Diallo plays as a central defender. Mainz 05 sporting director Rouven Schröder has said that Diallo is "strong in the air and shrewd in the challenge". Michael Zorc, the sporting director of Borussia Dortmund, described Diallo as "a modern, strong central defender who is very intelligent. He can play a wider defensive role too or even be deployed in a defensive midfield role".

Abdou Lakhad Diallo was born on 4 May 1996 in the city of Tours, which is the prefecture of the department of Indre-et-Loire.