Bordeaux-Begles ran in seven tries to thrash London Welsh 52-20 in Pool 4 of the European Rugby Challenge Cup.
London Welsh have made ten changes to their XV for Thursday's European Rugby Challenge Cup clash with Bordeaux-Bègles.
Jonathan Davies says Clermont's defeat to Bordeaux-Begles was 'deeply upsetting' and 'unacceptable'.
Clermont sit on top of the Top 14 table as they became the first visiting team to taste victory at Oyonnax this season.
Clermont returned to the summit of the Top 14 standings in style while Castres climbed out of the relegation zone.
Bordeaux-Begles climbed to fifth place in the Top 14 standings thanks to a hard-fought 27-21 victory over Montpellier.
Champions Toulon, Brive, Clermont, Lyon, Grenoble and Stade Francais were all winners in the Top 14 on Saturday.
Rupert Cox reviews the weekend's rugby including the hotly-contested Top 14 in France.
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