Gloucester Rugby - who will complete their Pool 6 programme with a home tie against four times Heineken Cup champions Toulouse - got their first win of the tournament at Connacht Rugby in Round 3 and can still have a huge say in the final group placings.
James Simpson-Daniel scored Gloucester's try in a hard-earned 14-10 victory in Galway and the England wing is adamant they still have plenty to play for
"If you are looking at what's happened, losing at home isn't great," he said. "But if we can win all our remaining matches we might have a chance.
"We are not saying we're now going to win Europe but let's get back to winning ways. Every game that comes we will target and next week is a big game because if we win that we can revisit Europe down the line with a bit of momentum.
"We are looking at it to be a turning point as it is important that we do that after winning one out of our last seven. We needed a result to turn that corner but if we had another loss, you come back and try to start again.
"To win away from home, in a difficult place like Connacht, playing them again next week means we can really try to build momentum. When you are winning you are less nervous and when you are losing people are twitchy and balls go down but we're hoping it's the start of a winning run.
"And those doubts will creep into Harlequins minds after their loss at home to Toulouse. It's great when you are winning as you learn to win and get into a habit of it.
"I have been there with the winning run at Kingsholm but when the bubble bursts it's very hard. It's all about how you react and bounce back. Quins will want to build up their performances again because Toulouse were very impressive.
"Quins will be feeling a bit more pressure and, if they lose again. who knows we could be battling with them. It's certainly not over but we're not saying we will be champions.
"In the game at Connacht there were probably opportunities out there that went missing, a few individual errors but it was just about getting the win. It's a very difficult place to come and there was a big wind blowing but in the second-half we were playing into it and handled it well.
"Our defence was okay and we're delighted to get the win. They are physical and very good at the breakdown, they latch onto you and hold you up and get a lot of choke-tackle turnovers. The forwards coped with that well, the backs had to fight a lot but credit to the boys it makes the next training session a little bit easier.
"In the return match on Saturday we have to take our opportunities. In Galway there were a handful of realistic opportunities where we could create points and we need to take these chances. We had five or six clear cut opportunities and we have to take them.
"On top of that discipline will be crucial. We can't give away soft penalties like we have all season or we won't get anywhere. In Europe - more so than anywhere - you have to take your chances because they don't come very often."
Following Connacht's third defeat in their debut season in the tournament, captain Gavin Duffy said: "We have to look forward to the challenge of going to Kingsholm. It's another tough weekend and we have to have the right attitude.
"You play for pride every time you pull on the Connacht jersey. We're playing for pride but more importantly we're playing for the win."