Score four tries and get a win in the process and a place will be booked in March's knockouts. But inevitably with the final round of pool matches there will be plenty of calculations needed should Saints not get the result they want at Sandy Park.

The other key fixtures are at Kingsholm, where Gloucester play Bath, and the Brewery Field, which hosts Ospreys' match against Harlequins.

Putting it simply...
Saints win with a bonus point at Exeter SAINTS QUALIFY
Saints win and Bath win without a bonus point SAINTS QUALIFY
Saints win and Bath win with a bonus point; or Saints lose and Bath get losing bonus point; or Saints and Bath both get 0 points and Ospreys beat Quins; or Saints get losing bonus point, Bath lose and Ospreys get bonus point win over Quins COMES TO TRIES SCORED (currently Saints 6, Bath 5, Ospreys 4) THEN POINTS DIFFERENCE (currently Saints +28, Bath +22, Ospreys -8)
Saints lose, Bath win or draw BATH QUALIFY
Saints and Bath both get 0 points, Ospreys get bonus point win over Quins OSPREYS QUALIFY

Although they are now regular opponents in Aviva Premiership Rugby, the Saints have met the Chiefs just the once in cup competition, in the final of the 2007/08 EDF Energy National Trophy final at Twickenham, a game the Saints won 24-13.

That was nearly five years ago; however there are still players at both clubs who will remember that sunny afternoon. Brett Sturgess and Richard Baxter both started for the Chiefs, with Tom Johnson on the bench, and all three are still at Sandy Park. Meanwhile starters Paul Diggin and Dylan Hartley, and replacements Stephen Myler and Soane Tonga'uiha are all still plying their trade in the black, green and gold.

Sturgess, Johnson and Diggin will all miss Saturday's game through injury, while Hartley is on international duty. Regardless, with Exeter also having a chance of reaching the knockout stages - needing a bonus point win to maintain pressure on Harlequins at the top of Pool 1 - a competitive clash is on the cards.