Having already beaten the Dragons and the Scarlets, the Ospreys are currently on top of the pile with the Blues North in second place.
In the other game, the South entertain the Dragons at Glamorgan Wanderers
Ospreys: T Prydie; B Barlow, D Howell, K Blackmore, E Walker; O Williams, R Jones (Capt); R Apsee, R Curties, J Fraser, S Davies, B Davies, R Kehoe, M Sully, D Baker
Replacements: T Habberfield,, M Morgan, S Hughes, S Pick, M Carpenter, L Evans, D Saines
Blues South:
Replacements: R Davies, A O’Malia, J Gape, R Tucker, S Curtis, D Bird, D Evans
Blues North: H Thompson; A Webber, O Williams, S Campbell (Capt), B Jones; J Griffin, K Marmion; T Emanuel, C Williams, O Davies, M Cook, J Barley, O Sheppard, T Young, D Barry
Replacements: L Smout, J Williams, J Gibbon, D Waldin, J Wills, L Williams, E Sherlock
Dragons: S Bevan; L Foley, A Cooper, M Channing, M Jolly; L Roblin, J Evans; L Bacon, L Jones, A Yule, R Griffiths, A Hughes, G Rogers, G Evans, R Wilson (Capt)
Replacements: R Paul, T Rusgas, C Penna, A Herbert, D Carter, L Ford, G Kemp
Fixtures
Blues South v Dragons (Glamorgan Wanderers, kick-off 7.15)
Ospreys v Blues North (Llandarcy Academy, kick-off 7.15)