There were wins for Sale and Connacht in the Challenge Cup on Saturday while London Irish lost away to Grenoble.
World Cup winner Ben Franks could make his London Irish debut in Saturday's Challenge Cup trip to Grenoble.
Edinburgh scored three tries as they began their Challenge Cup campaign with a 28-10 win over Grenoble.
Scotland flanker John Hardie makes his Edinburgh debut in Friday's Challenge Cup opener against Grenoble at Murrayfield.
European Challenge Cup holders Gloucester will face local rivals Worcester Warriors in the 2015-16 competition.
Dodgy refereeing, French figures and a sleeping giant's awakening feature in Rupert Cox's weekly blog.
Oyonnax stunned Clermont Auvergne at the Stade Marcel-Michelin and Toulon capitalised by winning away in Grenoble.
Toulon once again find themselves at the top of the French domestic league thanks to a five-try win over Brive.
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