Hewitt starts on the bench as first choice centre partnership Simon Rosser and Aled James are reunited after the cup match against Rumney. Gareth Morris also returns on the wing.
In the pack new prop Alex Murphy makes way for the experienced Gareth Alexander and Richard Thomas comes back in at number 8 with Mike Grimes moving over to the blindside.
Nick Kelly reverts to the second row in place of Keith Stewart.
Glamorgan Wanderers
15. Charlie Johnson
14. Steve Cullen
13. Simon Rosser
12. Aled James
11. Gareth Morris
10. Mark Roper
9. Harry Trelawney
1. Matthew Bolton (Capt)
2. Richard Emms
3. Gareth Alexander
4. Gareth Knight
5. Nick Kelly
6. Mike Grimes
7. Ben Rose
8. Richard Thomas
Replacements
16. Mark Sheppard
17. Alex Murphy
18. Keith Stewart
19. Lee Highgate
20. Craig Warman
21. Dafydd Hewitt
22. Jamie Jones
