Leicester defender Alan Maybury has added to the voices saying Trent McLenahan's red card was harsh.
Speaking to the Leicester Mercury, Maybury said: "I know it's difficult for the referee. Our physio said 'I don't think we'd have complained if he (McClenahan) had got a yellow as well'.
"But I know there's an assessor in the stand, and the referees have to follow the letter of the law. I can see why the referee made it. But if it had been only a yellow we wouldn't have complained."
On the incident for the Bulls penalty Maybury, who claimed he was on the line as the last man, added: "To make it clear to the ref, I stayed there when some of the lads went to protest. He saw that and that saved our 'keeper. We knew it was going to be difficult. The way Conrad kicks the ball is a great asset to us, so we knew we could just turn them and kill them off and play from there. In the first half, we did that well, but at the start of the second half we never got going. We gave them hope.
"They took advantage and made it difficult so we're glad to get through.''