Rhys Webb scored two tries at the death to hand Ospreys a 40-27 derby win over Cardiff Blues at the Principality Stadium.
Scott Williams returns from injury at Judgement Day as the Scarlets face the Dragons and Cardiff Blues tackle the Ospreys.
Catch up on all the highlights from an exciting penultimate round of Guinness PRO12 action.
Ospreys prop Ryan Bevington has signed a new one-year contract at the Welsh club.
Ospreys back-row Joe Bearman has signed a one-year extension to his contract.
The Ospreys kept their Champions Cup qualification hopes alive with a 47-10 thumping of Treviso at the Liberty Stadium.
Rob Kearney returns for Leinster to face Edinburgh while Ospreys and Treviso contend with their own injuries.
Ospreys winger Jeff Hassler has been ruled out for the rest of the season after undergoing shoulder surgery.
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