He spent his entire playing career with Monaco, before becoming manager of the club, leading them to the league title in his first full season in charge.

[5] Lille were one of the winners of the 2004 UEFA Intertoto Cup, having defeated União de Leiria of Portugal 2–0 in extra time in the final after a goalless aggregate draw.

[16] On 25 October 2017, Puel was appointed as the new manager of struggling Premier League side Leicester City, replacing recently sacked Craig Shakespeare, on a contract running until June 2020.

[18] From 31 January 2018 until the end of the season, Leicester recorded only three wins from 14 league games,[19] a dismal run that saw Puel accused of negative football.

[24] Puel's decision to leave Adrien Silva out of the first team squad and make him train with the under-23s was criticized by the player's father, who accused the manager of unfairly "picking on his son".

[25] A shock 2–1 FA Cup third round defeat to League Two club Newport County on 6 January 2019,[26] in which Puel was jeered by Leicester fans for fielding an understrength side,[27] was voted by BBC viewers as the biggest upset of the competition.

[31] Two days later was his first match, the Derby du Rhône against his former team Lyon, and won 1–0 at home with a last-minute goal by substitute Robert Beric.

[32] Puel's team beat reigning champions Rennes in the semi-finals of the Coupe de France on 5 March 2020, to reach the final for the first time since 1982.