He played for the Catalans Dragons in the Super League and France at international level.

He also played in a match against the touring Australian Kangaroos at the end of the 2005 season, scoring a try and kicking two goals.

On 2 July 2020, Frayssinous was appointed as the first head coach of the Ottawa Aces for their inaugural season in RFL League 1 in 2021.

However, due to the COVID-19 pandemic and subsequent financial issues the Ottawa Aces club folded before playing a match and were forced to withdraw from the competition.

In Oct 2022, Laurent was appointed assistant-coach at St Helens R.F.C., concurrently with his role as the France head-coach position.