Gregor Townsend’s men earned a historic 23-14 triumph over last season’s finalists at Stade Yves-du-Manoir to boost their push towards the knockout stages. Their third victory on French soil saw them keep pace with Munster in the Pool 1 race.

But they will have to repeat their famous victory in-front of their Scotstoun faithful if they are to maintain their challenge. And Pyrgos, who has just put pen-to-paper on a new deal at Scotstoun, is determined to make it two in-a-row against Dan Carter and co.

“We've been competing at the top end of the league for a while but we have not cracked Europe,” Pyrgos said. “When you look at the Racing team sheet you can probably see why. Every team you come up against is a real quality side.

“In the past we have had good wins but we are going to have to back it up week after week and play really well consistently. That is the challenge for us this weekend. It is an exciting one and the boys are raring to go. They want to go out and show we can do it again against quality opposition.”

Co-captain Pyrgos will be pushing to start over Ali Price, who was entrusted in the scrum-half role in Paris. Racing, who sit bottom of the pool without a win from their two matches so far, are out to kickstart their campaign. And coach Ronan O’Gara knows they will have to claim a bonus-point win if they are to get back in the knockout picture.

He said: “Glasgow greatly deserved the victory, there is nothing to complain about. They defended very well against our strengths and we, we committed too many faults in the current game. Mentally, we were not there.

“The use of the calculator could soon prove useless, as soon as Friday in case of another defeat, in Glasgow this time. Mathematically, we can still qualify. But it will be necessary to win practically all matches with bonus.”