The mind immediately goes back to 2011, the Cardiff final and the comeback to end all comebacks from the boys in blue.
There was also the Christmas double header back in 2013 when Saints got ripped apart at home and then went to Dublin and gained revenge.
But our main match-up this weekend from an individual perspective is all about the future rather than the past.
Two of the most exciting young talents in the game will go head to head in midfield this weekend when Rory Hutchinson and Garry Ringrose match up.
Ringrose hat-trick, one for Sexton, and Ronan Kelleher launches his Champions Cup top scorer bid 🏆 pic.twitter.com/NbN6iBlTdl
— PRO14 RUGBY (@PRO14Official) November 16, 2019
And you would think this is a face-off that we are going to see plenty of over the next few years in the colours of both club and country.
Ringrose is already well-established as an international star, one of the few Ireland players whose reputation was not damaged out in Japan.
And he looks back to his best in blue as well, a hat-trick at the RDS against Benetton in round 1 of Europe was proof enough of that.
Hutchinson meanwhile made his Scotland debut before the World Cup, before then being inexplicably overlooked when it came to the tournament proper.
But that disappointment has fuelled his stunning form for Northampton this season.
Last year was his breakout at No.13 for Saints, and this year under Chris Boyd the progression has continued.
Saints currently sit top of the English Premiership table and Hutchinson is a big part of that revival.
Mixing and matching between inside and outside centre this season, the arrival of All Black Matt Proctor has sharpened their attacking potential still further.
Ringrose is a Rolls Royce of a centre, but Hutchinson is not far behind the meteoric rise of the Irishman, and their midfield match-up this weekend should make for fascinating viewing.
Cardiff City Stadium will play host to the 2020 Guinness PRO14 Final on June 20 as one of the most exciting days in the club rugby calendar comes to Wales!
General sale tickets are available from http://bit.ly/PRO14Cardiff2020 and prices start at just £13 for concessions and £26 for adults (subject to booking fees), that’s a 15% early bird discount. Family ticket (2 adults / 2 children) prices begin at £64 and fans are encouraged to buy early to get the best value tickets.