 On 17 May 2018, Diagne missed out on the World Cup squad after being overlooked by manager Aliou Cissé.On 9 September 2018, Diagne made his debut for Senegal in a 2–2 draw against Madagascar in a 2019 Africa Cup of Nations qualifier, coming on in the last minute as a substitute for Moussa Konaté.Al-Shabab

Galatasaray

Senegal