 Following his signing, Squillaci was inserted onto the club's reserve team, which was playing in the Championnat de France Amateur, the fourth level of French football.He spent two years playing on the club's reserve team from 1998 to 2000 amassing over 45 appearances.After failing to establish himself under Claude Puel, Monaco officials announced that Squillaci would be heading to Corsica to join Ligue 2 club AC Ajaccio on loan.