There will two other top clashes as Dunvant meet a lively Cwmllynfell team at Broadacre and coach Emyr Lewis will find that his Felinfoel team will be pushed all the way by Kidwelly in what could be a thriller.
Abercynon and Llantrisant have home games in the East against Treherbert and Risca respectively and will join Rumney on 15 points if they win and the Cardiff-based leaders fall to their first loss of the season at Croesyceiliog.
There will be an interesting match at Tredegar, where Treorchy are the visitors.
