Rovers Thirds have already knocked the Bucks out of the Pyman Shield so it all rests on the Stags to end the season with a flourish.
The demands of the first team this week means several players are being held back, but Andrew Foreman is due to return after a long injury lay-off.
Stags starting 15: Knight, Thomas, Jones, Todd, Butcher, G. Robinson, Foreman, Wood, Wales, Palmer, Hadwen, Myers, Rafferty, Wray, Miller.