Nick Evans landed a dramatic drop-goal deep into added time as Harlequins won 19-17 to make it four wins out of four in Pool Four and follow up last week's victory in the Stade de France.

Having been 66/1 at the start of the competition, Quins are now no bigger than 8/1 although most bookies offer them at 7s.

Those successive defeats for Stade Francais mean they're now out to 33/1 at Sky Bet having been just 4/1 a couple of weeks ago.

Toulouse and Munster are Blue Square's joint favourites at 7/2.

Three-time European champions Toulouse secured a fourth straight win in Pool Five by beating Newport-Gwent Dragons 26-13 while holders Munster snatched a precious victory from the jaws of defeat as they stunned Clermont Auvergne with two late tries at Thomond Park to win 23-13.

Cardiff Blues are the only other side with a 100% record after a workmanlike 10-6 victory over Biarritz at Parc des Sports Aguilera.

Cardiff are a best 10/1 at Sky Bet and Paddy Power.