Oyonnax stunned Clermont Auvergne at the Stade Marcel-Michelin and Toulon capitalised by winning away in Grenoble.
Stade Francais recorded a thrilling 40-26 win over Clermont Auvergne, while Toulouse came from behind to shock Toulon.
Rupert Cox shares his highlights from the week's rugby action in his round-up blog.
Toulon once again find themselves at the top of the French domestic league thanks to a five-try win over Brive.
French club Bayonne have signed England-capped back Mathew Tait and All Black Tom Taylor.
Bordeaux came back from an 11-point deficit to defeat Toulon 28-23 in the Top 14 at the Stade Chaban Delmas.
Clermont and Stade Francais both suffered losses in the Top 14, leaving them locked together with new leaders Toulon.
Toulon put their Steffon Armitage woes to one side to beat Bayonne 24-17 in the Top 14 on Friday.
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