Scotland have been pitted against Ireland on the opening weekend of the new Celtic League.

Both Scottish Super Districts will face Irish opposition on the opening weekend of the competition in August, with Glasgow Caledonians travelling to Leinster in Pool A and Edinburgh Reivers hosting 2000 Heineken Cup finalists Munster.

Of the five Welsh representatives in Pool A, Swansea face the stiffest early test with their visit to Ulster, while Cardiff entertain Connacht in Pool B.

Fifteen teams have entered the tournament, with group games set to be completed by the middle of September and the knock-out stages taking place in December.

Pool A: Bridgend, Ebbw Vale, Glasgow Caledonians, Leinster, Llanelli, Pontypridd, Swansea, Ulster.

Pool B: Caerphilly, Cardiff, Connacht, Edinburgh Reivers, Munster, Neath, Newport.

Pool A
18 August
Leinster v Glasgow Caledonians
Bridgend v Pontypridd
Ulster v Swansea
Llanelli v Ebbw Vale

25 August
Llanelli v Leinster
Glasgow Caledonians v Ulster
Swansea v Bridgend
Ebbw Vale v Pontypridd

28/29 August
Bridgend v Glasgow Caledonians
Ulster v Llanelli
Pontypridd v Swansea
Leinster v Ebbw Vale

1 September
Leinster v Ulster
Llanelli v Bridgend
Glasgow Caledonians v Pontypridd
Ebbw Vale v Swansea

8 September
Swansea v Glasgow Caledonians
Pontypridd v Llanelli
Bridgend v Leinster
Ebbw Vale v Ulster

11/12 September
Ulster v Bridgend
Leinster v Pontypridd
Llanelli v Swansea
Glasgow Caledonians v Ebbw Vale

15 September
Glasgow Caledonians v Llanelli
Swansea v Leinster
Pontypridd v Ulster
Ebbw Vale v Bridgend

Pool B
18 August
Edinburgh Reivers v Munster
Cardiff v Connacht
Caerphilly v Neath
Newport free

25 August
Neath v Cardiff
Connacht v Edinburgh Reivers
Newport v Caerphilly
Munster free

28/29 August
Munster v Connacht
Edinburgh Reivers v Neath
Cardiff v Newport
Caerphilly free

1 September
Caerphilly v Cardiff
Newport v Edinburgh Reivers
Neath v Munster
Connacht free

8 September
Connacht v Neath
Munster v Newport
Edinburgh Reivers v Caerphilly
Cardiff free

11/12 September
Cardiff v Edinburgh Reivers
Caerphilly v Munster
Newport v Connacht
Neath free

15 September
Munster v Cardiff
Neath v Newport
Connacht v Caerphilly
Edinburgh Reivers free

Quarter-finals: Saturday 1 December

Semi-finals: Saturday 8 December

Final: Saturday 15 December