 In the summer of 2003, the Welsh Rugby Union (WRU) voted to reduce the top tier of Welsh rugby union from nine clubs in the Celtic League into five regions through a series of mergers.The new Celtic Warriors officially represented the Mid-Glamorgan Valleys area, which in practice meant that they were a combination of Pontypridd RFC and Bridgend RFC with the two parent clubs continuing in the Welsh Premier Division.Games were to be rotated between Pontypridd's Sardis Road and Bridgend's Brewery Field.