Two tries from Rhys Williams saw Cardiff edge out Montferrand 26-20 in a tense match at the Arms Park.
His first try came in the first half, a good chip over the top allowed Williams to demonstrate his lightning pace, outstripping the French defence, tapping the ball on, and triumphantly touching the ball down.
The game ebbed and flowed with no real penetration from either side. Cardiff maintained a seven point cushion after penalties were exchanged.
The real excitement was saved for the final seconds. Cardiff were jubilant as a neat move was started and finished by Williams when he touched down in the corner. Harris dutifully converted and the victory seemed assured.
Immediately from the restart Montferrand poured forward, and intense pressure lead to full back Jimmy Marlu touching down, reducing the lead to just six points.
The ball broke loose in midfield, and was picked up by the now marauding Montferrand pack, were it not for some valiant defending five metres out by Canadian lock John Tait the French side would have snatched victory from the Jaws of defeat.
As it is Cardiff left the Park victorious, with Rhys Williams winning the Man of the Match award, a poignant award, as Williams had recieved heavy criticism after a poor perfomance the last time these sides met,
"I took a lot of stick after that game and I didn't enjoy it at all. I
wanted to put the record straight and show what I could do," said Williams.
"I needed this performance for myself and for the team. I might have
grabbed the tries, but the front five forwards tackled their hearts out
and were magnificent."
Joubert was in a positive mood in post match interviews, "I'm pretty confident we will be there in the last eight. I think we can go
and win at Northampton," said Joubert.
"This game went right to the wire, but it shouldn't have been like that. We
let them back into the game in the last 10 minutes."
If Cardiff can snatch victory at Franklin Gardens next week, they will be favourites to go through to the final eight in the competition.
Cardiff: Tries - R Williams 2; Cons - I Harris 2; Pens - I Harris 4
Yellow cards: J Tait 19, C Quinnell 37
Montferrand: Try - J Marlu; Pens - G Merceron 5
Yellow cards: A Galasso 19, A Audebert 37
The Webb Ellis Cup visited Lampeter on Monday to recognise the fact that the town is celebrating a major milestone as it is believed the first ever game of rugby played in Wales, was in fact played in Lampeter 150 years ago.
Cardiff Blues U18 Girls will go into Sunday's Gemau Cymru with an extra spring in their step after Welsh internationals Elinor Snowsill and Philippa Tuttiett offered some last minute tips at a training session earlier this week.
Rob Howley and Josh Lewsey addressed more than 250 community club coaches and referees at the first WRU National Community Conference on the weekend. The volunteers benefitted from coaching masterclasses and workshops in a bid to connect all levels of the rugby pathway in Wales.
UEFA has today confirmed the Football Association of Wales (FAW) has been successful in its bid for the Millennium Stadium to host the 2017 UEFA Champions League Final on Saturday 3rd June, 2017 (kick-off: 19.45hrs GMT).