Mohamed Youcef Belaïli (Arabic: محمد يوسف بلايلي; born 14 March 1992) is an algerian professional footballer who plays as a left winger for Tunisian Ligue Professionnelle 1 club Espérance de Tunis and the Algeria national team.

[10] On 20 July, Belaïli made his debut for Espérance as a substitute against ASO Chlef in the group stage of the 2012 CAF Champions League.

[12] Belaïli was one of the stars because of his high technical skills and led the club to valuable victories, especially against JS Kabylie where he scored the winning goal in the last minutes in a match that had an unfortunate end with the death of the player Albert Ebossé Bodjongo who was struck on the head by a projectile thrown by an unknown person while the teams were leaving the field.

[13] Belaïli for having tested positive for Cocaine during an anti-doping control carried out during the match against MC El Eulma on 7 August 2015 counting for the CAF Champions League.

[15] On 4 November 2016, the Court of Arbitration for Sport in Lausanne announced that it had decided to reduce Blaili's sentence to two years, adding that the player smoked Hookah two days before the match without being aware of its content, noting that he did not commit any error or noticeable negligence.

[20] Belaïli decided to take a new experience this time with Al Ahli of Saudi Arabia for three seasons in a deal that exceeded three million dollars.

[23] In the FIFA Arab Cup and after the end of the match against Morocco, the father of Youcef Belaïli, who is his manager, announced the termination of the contract by mutual consent.

[31] In September 2015, Youcef Belaïli is suspended by Confederation of African Football for 2 years for having tested positive for Cocaine during an anti-doping control carried out during the match against MC El Eulma on 7 August 2015 counting for the CAF Champions League.