GLASGOW WARRIORS' only European victory over Bath is still vivid in the mind's eye of Rob Harley.

The Scotland international was front and centre at Firhill back in November 2011 as Richie Gray was the hero of the day for Sean Lineen's side, who stunned their Premiership rivals in the dying seconds.

World Cup winner Stephen Donald kicked a last-minute penalty to put the English cracks 21-19 ahead with the clock ready to hit 80 minutes.

However, there was still time for a twist in the tale as Gray raced on to a charged-down Duncan Weir drop-goal attempt to just make it over the line for a famous 26-21 victory.

Harley was just yards behind his then-team-mate as the ball took a fortunate bounce into his hands, and the Warriors flanker said: "I did play in that game, yeah. I was right behind Richie - if he wasn't scoring I was!

"I was just pleased it got down. It was quite an incredible end to a game.

"Once the drop goal got blocked, it was just absolute chaos. I think their full-back was favourite to win the ball but it took the craziest bounce back towards Richie as he was rushing in."

While the same outcome this weekend in the first-ever game for both sides in the European Rugby Champions Cup would be welcomed, Harley and head coach Gregor Townsend will be hoping to do it in less dramatic circumstances.

That meeting three years ago was played in front of a couple of thousand fans at the home of Partick Thistle, but Glasgow will face Bath this time round in front of a 7000 sell-out at their own ground of Scotstoun.

It's a stage Harley is confident will help bring out the best in the Guinness Pro12 second-placed side.

He said: "The fact we have our first game here is great. We can set out our stall in the tournament at Scotstoun.

"There are less than 700 seats left so we are going to have a great crowd for it. That's one of the extra little things you need in European competition.

"The league is a majorly important thing for us and every week there are huge challenges. In saying that, since I've been here we haven't progressed beyond the group stages in Europe, so that's a major goal for me and the squad."

He added: "I think we've always had good entertaining games against Bath. They want to play a brand of rugby that is attacking.

"I think we are trying to both play fast and open rugby and hopefully we will see that on Saturday."

Meanwhile, Ulster's Alan O'Connor received a three-week ban after being cited for an incident against Warriors last Saturday.