Leaders Leinster remain unbeaten in the URC after a 24-19 win over Ospreys in last night's URC clash in Swansea.
Ulster lost 31-29 away to Benetton and Connacht were 24-12 winners at home to South African side Sharks.
There's more action in the URC later as Glasgow Warriors host the Stormers.
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Kick off at Scoutstoun is 3pm.
