The Saints first played Cardiff Rugby in 1926 and the clubs have met regularly ever since. Last season the crack Zurich Premiership team were too strong for the club side in two Heineken Cup ties.
Their appearance at the Arms Park, together with that of Leicester Tigers the previous Friday, will provide early test of the strength in depth of the new Cardiff Blues' squad.
Friday 22 August - Cardiff Blues v Leicester Tigers
Friday 29 August - Cardiff Blues v Northampton Saints
Both matches kick-off at 7.05pm