Wallaby fly-half Christian Lealiifano played the most important role since his comeback from a bone marrow transplant after he contacted Leukaemia just over 12 months ago when he helped Ulster to a dramatic victory over defending champions Scarlets.

Ireland’s summer debutant John Cooney will start his third successive game when Ulster tackle a star-studded Scarlets outfit on an emotional night at Ravenhilll (kick-off, 7.35pm).

Connacht 8 Scarlets 30: A defence of their unforgettable PRO12 title win that began with two heavy home defeats, fizzled out with another drubbing at the Sportsground for Connacht.

Connacht v Scarlets: Connacht, having lost only once at home on their way to that memorable Guinness PRO12 crown a year ago, will be bidding to prevent a fifth league defeat at the Sportsground this season when facing a Scarlets side bidding for a semi-final place.

Leinster head coach Leo Cullen says Scott Fardy’s experience will play a crucial role in the development of the academy players at the province. The 32-year-old versatile Brumbies lock will join Leinster after the Super Rugby season ends.

Munster 21 Scarlets 30: For 40 minutes at Thomond Park last night, Munster played some of their finest rugby of the season and deservedly opened up a 15 point lead over Welsh visitors Scarlets in a truly remarkable Guinness Pro 12 encounter.

Ireland centre Luke Marshall is determined to right recent wrongs this evening when a struggling Ulster side travel to Llanelli to face the Guinness PRO12’s in-form side unbeaten in eight games at Parc y Scarlets (7.35pm).

New Zealander Charles Piutau is anxious to get back into Ulster action for the visit of the winless Scarlets to the Kingspan Stadium this evening (7.05 pm),

Roger Wilson will make his 200th appearance for Ulster when the Guinness Pro12 table-toppers welcome Scarlets to Kingspan Stadium tomorrow afternoon.

Connacht 30 Scarlets 17: Connacht Rugby players take a deserved six-day break after finishing a run of 16 games with a European quarter-final in the diary and a top-four Guinness Pro 12 spot secure.

CHAMPIONS CUP: YOUR TEAM-BY-TEAM WEEKEND GUIDE