|Date of birth||27 March 1979|
|Place of birth||Rognac, France|
|Height||1.80 m (5 ft 11 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of end of 2009/10 season.
Born in Rognac, France, Mendil began his career in the SC Bastia academy, which he joined at the age of 15. On 22 February 1999, he made his first team debut for SC Bastia, coming as a second-half substitute against Toulouse FC in the 25th week of Ligue 1 action. It would be his only first team appearance after a contract dispute with the club. He spent one more season with the club's reserve team, scoring 24 goals, before leaving to Italy to join US Avellino in Serie C1. After just half a season with the club, he was signed by another Serie C1 team Lecco.
In his second season in Italy, Mendil joined Serie B side Cosenza, playing alongside former A.C. Milan striker Gianluigi Lentini and scoring 10 goals. His performances that season did not go unnoticed and he was linked with moves to a number of clubs including English clubs Fulham and West Ham United, and Italian clubs Atalanta and Reggina both playing in Serie A at the time. In the summer of 2002, he signed a 5-year contract with Reggina.
After signing with Reggina, Mendil was loaned out a number of times, spending time with Catania, Ascoli, Spezia Calcio 1906 and Salernitana. Since then, he has also played for AC Ancona and A.C. Pro Sesto. Mendil scored six goals for Pro Sesto in Serie C1 during the 2007–08 season.
Mendil was contacted several times by then Algerian head coach Rabah Madjer to play in the Algerian National Team in a friendly against Belgium. Mendil asked Madjer for some time to consider the call-up and eventually declined to allow him to deal with his transfer situation. He was called up a second time for a friendly, but his club never received the invitation. He has not been called up again since.