Ross Byrne went on to kick 16 points as Leinster edged out Ulster 21-18 in their Heineken Champions Cup semi-final encounter at Aviva Stadium on Saturday.
Ulster came from behind to edge out Leicester Tigers 13-14 at Welford Road on Saturday to seal a quarter-final berth in the ongoing Heineken Champions Cup.
Iain Henderson scored a double as Ulster secured their second win over Scarlets in two weeks with a 30-15 victory in their European Champions Cup clash at Kingspan Stadium on Friday.
Ulster came up with a better second half performance as they went on to beat Leicester Tigers in their European Champions Cup encounter at Kingspan Stadium on Saturday.
Ulster flanker Matty Rea has been handed a four-week ban following his red-card incident in the recently concluded Pro14 clash against Connacht last Friday in Belfast.
Ulster centre Darren Cave will be sidelined for up to eight weeks following a fractured thumb that he sustained during the recently concluded Pro14 encounter against Munster last weekend.