Born in Montagny, Fribourg, Chassot began playing professionally with Neuchâtel Xamax in 1987 and by 1989 he was a first-team regular and a Swiss internationalist.
He went on to play over 200 games for Xamax, scoring 48 goals and completing a loan spell at FC Basel.
In the second half of their 1992–93 season under head coach Friedel Rausch, Chassot signed a six month loan contract.
[3] In 1995, he joined Lausanne Sports but failed to make an impact and left for FC Sion a year later.
He stepped down in September 2014 due to a series of bad results, but he continued as Director of Sport until the end of the season.