Rhys Webb scored two tries at the death to hand Ospreys a 40-27 derby win over Cardiff Blues at the Principality Stadium.
Ulster kept their semi-final hopes alive with a 30-6 victory at home to third-placed Leinster in the Guinness PRO12.
Catch up on all the highlights from an exciting penultimate round of Guinness PRO12 action.
Scarlets grabbed a try bonus point to do the double over Newport Gwent Dragons with a 34-20 victory.
Francis Saili's 76th-minute try sealed a vital 27-19 bonus-point win for Munster against Edinburgh to put them on the brink of Champions Cup qualification.
Glasgow ran-in 10 tries as they demolished Zebre 70-10 to move top of the PRO12 table.
Connacht secured a maiden PRO12 semi-final place despite suffering a 22-21 defeat to Benetton Treviso following Jayden Hayward's dramatic last-minute penalty.
Scott Williams returns from injury at Judgement Day as the Scarlets face the Dragons and Cardiff Blues tackle the Ospreys.
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Will Greenwood gives his thoughts on how the Aviva Premiership could finish up this season.
Grenoble boss Bernard Jackman looks ahead to the European Finals and Ulster v Leinster live on Sky Sports this Saturday.
Phil Edwards explains why he is confident ahead of England's forthcoming three-Test series against Australia.
With 100 days to go before the Rio Olympics, Rupert Cox has put together his Great Britain Sevens Dream Team.
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28th May 2016
Sevens and the City
2nd July 2016
Barbarians v South Africa
5th November 2016
Stuart Barnes talks about the changes at the RFU, England's tour to Australia and Premiership and PRO12 contenders.
Dewi Morris says it's crunch time in the Championship as Bristol, Yorkshire, Bedford and Doncaster battle it out for promotion.