But Clermont captain Aurelien Rougerie dismisses any suggestion that they go into the semi-final with a major psychological advantage thanks to that recent victory.
"The Amlin Challenge Cup is a different competition with different refereeing and we will need to adapt and forget our previous results," said the French international threequarter.
"The fact that we are playing Paris again in such a short time is a sheer coincidence since the Top 14 fixtures were already set but it has turned out we are going to face Stade Français Paris in the Amlin Challenge Cup semi-finals whilst we have just beaten them in the Top 14.
"Equally, we faced La Rochelle in the Amlin quarter-finals earlier this month and then we played them again last weekend, winning 34-10.
"I know this is perhaps somewhat confusing but we try to handle each case as a whole new encounter each time. It would be so easy to fall into the same traps so we've got to be watchful and prepare as if it were a whole new set-up, whether our opponents might be the exact same outfit or not.
"So there is no room for complacency in our approach as we don't want any surprises."
Clermont were squeezed out of Heineken Cup knock-out qualification, finishing in second spot in Pool 2 behind 2009 Heineken Cup champions Leinster.
It meant they, along with Munster and London Wasps, joined the five Amlin Challenge Cup Pool winners in the quarter-finals, Clermont easing past La Rochelle 23-13 at Stade Marcel Deflandre.
Now they travel to Stade Charlety - wary that Stade Francais Paris may regard winning the Amlin as their best opportunity of Heineken Cup rugby next season.
"This might be a chance for Stade Français to come back into the Heineken Cup next season so there is a lot at stake for them and this will make the semi-final all the more fierce," said Rougerie.
"The Parisians will have done their homework as much as we did, and they won't want to make the same mistakes twice so we can't let our guard down.
"I don't think that game plans will have changed fundamentally within such a short period of time, so I think this will favour the defence.
"At the start of the season we didn't foresee that we would be in the Amlin Challenge Cup knock-out stages. Our focus was to qualify for the Heineken Cup quarters but unfortunately that didn't happen.
"But in the end it is not a bad thing, we're still in a European competition - and a very good one at that - and with its new formula it gives a new momentum to the clubs coming from the Heineken Cup and hoping to ultimately get a title.
"With teams like Munster and Harlequins still in the mix the games are definitely top class. A trophy is always good to have in your cabinet and we're up for that, and we will certainly work hard towards that."