Despite the red card, the visitors continued to be the better side with Cardiff having to survive sustained late pressure in order to pick up two points and cement third position in the league.
Ospreys recovered from last week’s shock defeat to Dragons with an impressive 37-24 victory over Stormers in a titanic battle in Bridgend.
The Wales hooker has taken up his first head coach role with his home town club, Bridgend, and he likes to think he's learnt from the best
Dragons stunned Ospreys 23-21 in the United Rugby Championship thanks to a dramatic converted try by replacement prop Luke Yendle.
The Welsh national team maybe going through a chastening period but there is a rich seam of talent coming through
They will need another five-pointer in their final regular season game against Cardiff on June 1 to have any chance of a top-eight finish.
Gloucester fly-half Adam Hastings is set to make his return from injury on Friday against the Ospreys in the Challenge Cup quarter-final at Kingsholm.
.Hamish Watson’s early try set Edinburgh on their way to a hard-fought 19-15 victory at home to Ospreys in the United Rugby Championship.