Bayonne president Alain Afflelou said he was open to the idea of a merger with Top 14 rivals Biarritz ahead of next season.
Bayonne have made a number of changes to the side that went down 34-6 at Bordeaux-Begles for the visit of Grenoble on Thursday.
English and French clubs are to form a new breakaway competition next season after talks about continuing the Heineken Cup ended.
With the Rugby Championship taking a week off after two pulsating rounds, our focus this week is on the best of the action from France....
The Top 14 transfer window closed at midnight on Saturday with a handful of last-minute announcements made in France.
The local passion surrounding Friday's ever-fiery Basque derby between Bayonne and Biarritz masks deeper concerns.
Top 14 strugglers Bayonne have signed South African props Gert Muller, from Agen, and JC Janse van Rensburg from the Lions.
Stade Français held on for a valuable Top 14 win over Bordeaux-Bègles on Saturday despite seeing skipper Sergio Parisse sent off.
Top 14 leaders Toulon will try to get back on the horse after last week's shock loss when they face Montpellier.
On a day of by upsets, Top 14 leaders Toulon were thrashed 41-0 by Bordeaux-Bègles while Toulouse lost in Agen.
A clash of fixtures with the Six Nations means that France's heavyweights must travel without their European internationals this weekend....
French clubs Bayonne and Biarritz have opened talks around the possibility of forming a single Basque team for the Heineken Cup.
Bayonne moved well clear of the Top 14 relegation zone on Thursday thanks to a 22-12 win over Castres at Stade Jean Dauger.
Toulouse and Biarritz will turn their attention to domestic action when they go head to head in the Top 14 on Friday.
Castres travel to Bayonne on Thursday looking to bounce back from elimination from Europe and stay in touch with the Top 14 leaders.
Gloucester and Bath cemented their positions at the top of their respective Amlin Challenge Cup Pools with good victories on Saturday....
Bayonne have announced that Neemia Tialata has put pen to paper on a contract while Timoci Matanavou has re-signed with Toulouse.