It's win or bust for both Bayonne and the Dragons when they meet in the Amlin Challenge Cup on Thursday.
Grenoble claimed yet another big scalp as they maintained their unbeaten home record with victory over Castres.
Top 14 action continues as Toulon look to keep their lead at the summit ahead of the final break before the Heineken Cup Pool run-in.
Clermont closed the gap on Top 14 leaders Toulon on Sunday with a 48-3 win over Bayonne.
Clermont will look to carry their Heineken Cup form across to the Top 14 when they travel to Bordeaux on Friday.
Wasps put themselves in full control of Pool 3 in the Amlin Challenge Cup with a 30-16 victory over Bayonne.
Wasps battled back from a 10-point deficit to secure a 13-13 draw at Bayonne in Pool 3 of the Amlin Challenge Cup.
Pool Three leaders London Wasps will put their unbeaten record on the line against Bayonne on Saturday.
With the dust now settling on the November internationals, attention turns to the Top 14 this weekend.
Mont-de-Marsan caused the biggest upset of the Top 14 season by beating Racing Metro in Paris while Stade Français downed Agen.
Toulouse flanker Sylvain Nicolas is looking to make the most of his chance in Friday's Top 14 clash against Montpellier.
Jonny Wilkinson kept Toulon top of the Top 14 table by booting all their points in a 24-19 win over Stade Francais.
Sergio Parisse inspired Stade Francais to a much-needed 28-24 victory over Toulouse, while Toulon battered Bayonne.
High-flying Clermont will look to carry their impressive Heineken Cup form into the Top 14 when they face Biarritz.
Newport Gwent Dragons slumped to their second Challenge Cup defeat in a row at home to Bayonne.
Dragons welcome back winger Tonderai Chavhanga for the Amlin Challenge Cup fixture against French club Bayonne.
Wales star Mike Phillips will resume training with Bayonne after having his suspension lifted by the French club.
Grenoble recorded their fourth consecutive home win in the Top 14 after knocking over Perpignan 28-23 on Saturday.
The Top 14 weekend sees defending champions Toulouse host leaders Toulon while the stakes are high in the Basque derby in Biarritz.
Mike Phillips faces at least a fortnight out after injuring his hand during training with his club Bayonne.