As well as the Jonny Wilkinson inspired French club, the Chiefs will also meet Cardiff Blues and RaboDirect PRO12 semi-finalists Glasgow Warriors. For British & Irish Lions prop Gethin Jenkins, who is returning to Cardiff Blues after one season in France, the draw means he will be playing against the Toulon team mates with who he won the Heineken Cup.
"We're very happy with the draw again. Just looking at the sides in Tier One, we always knew that we would be coming up against one of the biggest sides in Europe," said Chiefs skipper Tom Hayes.
"It so happens, a bit like last year, we've got the reigning champions again, but we've got two equally tough tests in Cardiff and Glasgow. We've obviously faced Cardiff and Glasgow over the last few years in both the LV= Cup and in pre-season, so we know a bit about them and what kind of threat they pose.
"That said, whoever you play in the Heineken Cup you know you'll be in for a test and that's what we are going to expect. I keep saying it each season, but as a group of players we thrive on these kinds of challenges.
"As players and as a group, you want to be testing yourselves against the very best out there. Certainly we felt we did that last season in the Heineken Cup and I've no doubt it will be a similar story again this time. Again we'll attack every game as best we can and see where it takes us."