Andrew, who was so impressive against South Africa in the Autumn Internationals takes his place on the left wing, while Tommy, who hasn't been in action since leaving the pitch early on with a hamstring injury in the tremendous victory against Toulouse is on the other wing.

They are the only two changes to the starting fifteen that played against Leinster in the Magners League on Saturday at Ravenhill. Mark Bartholomeusz take his place on the bench to accommodate the return of Trimble and Bowe while Scott Young is not included in the 22. With Stephen Ferris ruled out for 4-6 weeks with ligament damage to his hand, Kieron Dawson retains the openside position while Neil McMillan is the backrow cover on the bench.

ULSTER: 15 - Bryn Cunningham; 14 - Tommy Bowe ; 13 - Paul Steinmetz; 12 - Paddy Wallace; 11 - Andrew Trimble; 10 - David Humphreys; 9 - Isaac Boss; 1 - Bryan Young; 2 - Rory Best; 3 - Simon Best (Captain); 4 - Justin Harrison; 5 - Matt McCullough; 6 - Neil Best; 7 - Kieron Dawson; 8 - Roger Wilson

Replacements: 16 - Paul Shields; 17 - Justin Fitzpatrick; 18 - Tim Barker; 19 - Neil McMillan; 20 - Kieran Campbell; 21 - Kevin Maggs ; 22 - Mark Bartholomeusz