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.
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.
They can no longer afford big-ticket imports but an emerging crop of talented youngsters gives Ospreys cause for optimism.
The first Guinness Six Nations after a World Cup often sees a changing of the guard, with new faces emerging as a fresh four-year cycle begins.
The Heineken Champions Cup Round of 16 featured some impressive individual performances, with several players standing out in key statistical categories.
Cai Evans proved decisive as Ospreys took a huge step towards qualifying for the knock-out stages of the Heineken Champions Cup.
.Winger David Kriel scored a brace of tries as the Bulls claimed a 43-26 home win over Ospreys in the United Rugby Championship.
Every team in the URC has been busy sorting transfers ahead of the upcoming summer break. The Irish provinces have been using their academies...
