But the visitors challenged the decision and the bunker found that Horsburgh had slapped the Knights centre and he was sent to the sin bin in the 73rd minute. It was a f***ing brain explosion, and we lost the opportunity," Stuart said. "There was one last week or the week before with Alex Twal. The Knights hit back when Young tore down the right flank and gave the ball to a running Ponga. But Gagai capitalised on a blistering Young run, before the winger completed the victory in the 78th minute.