Sky Sports' experts review a thrilling weekend in the Rugby Championship and preview the epic finale.
Edinburgh have suffered a blow with the news that Perry Parker has been ruled out for up to four months.
Scarlets battled their way to a 22-9 victory at Edinburgh, scoring tries through Nick Reynolds and Jordan Williams.
Sam Warburton will make his first appearance of the season for Cardiff against Leinster after recovering from injury.
Edinburgh have added to their pack with the signing of No 8 and Hawke Bay skipper Mike Coman on a two-year contract.
Edinburgh have signed Argentina back-row Tomas Leonardi on a three-month contract.
The unbeaten Ospreys scored six tries as they powered to a 44-10 RaboDirect PRO12 victory over Edinburgh in Swansea.
Geoff Cross and Aleki Lutui will start their first Edinburgh match of the season against Ospreys at the Liberty Stadium.
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