Toulon came from behind to defeat the French Top 14 rugby leaders Clermont 26-21 with new star signing Jonny Wilkinson contributing three penalties and a drop goal.
Trailing 9-0 after just 11 minutes Toulon went on to dominate the match, particularly in the scrum.
Toulouse kept up their solid start with a 21-17 home win over Bayonne which put them top, but only on better points difference from Toulon.
Stade Francais suffered their first loss when the bottom club Montaubun beat them 40-35 while the champions Perpignan easily saw off Brive 21-9.
Bourgoin beat Racing Metro 17-13 and Montpellier won 22-18 over Biarritz.