Admiral Championship club Maesteg Quins provide five players to the Conty side, including skipper and tight head prop Dean Ronan. He will have his brother, Jay, for company in the front row.
Cwmafan, who are currently seventh in Admiral Division 3 West Central, are led this season by back row man Elliot Price. The big match will be preceded by a curtain raiser between Cwmafan U15 and Maesteg Celtic U15 in the Ospreys Cup (11.30am kick-off).
Cwmafan: Lewis Page; Kieran Hooper, Taylor Jay Hayden, Dan Gully, Garin Williams; Iestyn Williams, Rob Phillips; Cameron Clayton, Jack Nicholas, Rhys Hardy, Sean Harrington, Callum Breeze, Ben Bragger, Elliot Price (captain), Ash Mortimer
Reps: Jack Owen, Sam Roberts, Evan Woolcock, Morgan Roberts, Morgan Williams, Sam Waters, Jacob Osborne, Harri Suter, Aneurin Morgan, Aled Thomas-Samuel
Glamorgan: Owen Howe (Maesteg Quins); James Leppard (Tondu), Sion Summers (Bryncethin), Josh Tatchell (Tondu), Ben Evans (Aberavon GS); Lloyd Bradley (Bryncethin), Geraint Watkin (Bryncethin); Glenn Williams (Heol y Cyw), Jay Ronan (Maesteg Quins), Dean Ronan (Maesteg Quins, captain), Ellis Andrews (Heol y Cyw), Steve Williams (Maesteg Quins), Mark Ellis (Tondu), Jordan Goodwin (Beddau), Lewis James (Beddau)
Reps: Lewis Carson (Nantymoel), Foard Cooksley (Aberavon GS), Logan Hutchings (Treorchy), Ben Griffiths (Beddau), Curtis Greensalde (Treorchy), Brett Thomas (Aberavon GS), Matthew Beech (Gilfach Goch), Cohen Lewis (Tondu), Owen Watkins (Maesteg Quins), Morgan Griffiths (Gilfach Goch)