The Ospreys are back in the PRO12 play-off places, after beating Edinburgh at the Liberty Stadium.
Man of the match Morgan Allen scored two tries from No.8, and scrum half Rhys Webb got another, but the Welsh side failed to get a bonus point.
Edinburgh crossed through Hamish Watson, but also had centre Nick de Luca sent off for a dangerous tip tackle late on, as they slipped to their tenth defeat in a row in all competitions.
More top news
The Bluebirds need two wins from their final three games to guarantee promotion.
Jeremy Corbyn will be the main speaker at a Welsh Labour conference coming to terms with Carwyn Jones' announcement of his departure.
Any heavy showers will clear away northeastwards through late evening.