Raguin first caught the eye in 2005 playing for Toulouse Olympique during their famous run to the semi-finals of the Challenge Cup. He famously played for them semi-professionally whilst working during the week as a traffic warden in the city of Toulouse.
In 2007 he signed with the Catalans Dragons, and quickly established himself as a key component of the Catalans pack. His 2007 season was punctuated by injury, however he became an ever-present in the Catalans Dragons side during their run to the Super League play-offs in 2008, where he frequently played in the centres striking up a good partnership with Younes Khattabi.