Games will be played at 1 and 3 p.m.
The Bearcats enter the doubleheader after a pair of one-run losses to the Windsor Knights last Sunday. Truro was shaded 4-3 and 3-2.
The Bearcats hold down sixth place in the eight-team league with a record of 8-14. The second-place Shamrocks are 15-6.