Scotland tight-head prop Willem Nel commits to a new three-year contract extension at Edinburgh.
Premiership strugglers Bristol sign Tonga international Sione Faletau and Edinburgh's Jack Cosgrove for next season.
Ospreys move top of the Pro12 table as they inflict Edinburgh's fifth successive defeat in awful conditions at Myreside.
Lloyd Williams scores a late try as Cardiff Blues recover from 11 points down to snatch victory over Edinburgh.
Audio & Video
Watch Scrum V's highlights as Ospreys move top of the Pro12 with a hard-fought victory over Edinburgh.
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