Wigan Warriors head coach Adrian Lam showed frustration towards his side as they battled their way past Championship club York City Knights in third round of the Betfred Challenge Cup.
The result sees the Warriors book their place in the quarter-finals of the tournament.
Though he was satisfied with the win, Lam was unhappy with the lack of discipline his Wigan showed throughout the game.
He said: “I was frustrated at times. I thought we had ourselves to blame for that.
“The penalties were out of control and some of them, we are not used to. We made a lot of errors in both halves and put ourselves under pressure.
“Our own discipline, without a doubt, that was a problem but I think we got frustrated by the calls that were just out of control.
“I am not blaming the referee at all, I am just saying it was one of those games where the sooner the end came, the better.
“We got through injury free, for now, and into the quarter-finals, which is a positive and holding the opposition to 0 points was another highlight.”
However, Lam did praise York for their efforts as they troubled his Wigan side for large periods in the match.
He added: “I think the York supporters, club and players should be proud of themselves. I thought they were courageous tonight. They never gave up.
“There was plenty of effort and certainly, their coach (James Ford) should be happy!”
Two former Man of Steel winners in Zak Hardaker and Jackson Hastings caught the eye, both being nominated for Man of the Match, with the award ultimately going to the latter.
Reflecting on their contribution, Lam said: “I thought Zak Hardaker at the back was outstanding. He has been brilliant for us for three games.
“Jackson stepped up tonight for us, which was great. I think as the season unfolds for us, Jackson will run the ball for us more, which is what we need and I am very pleased for him.
“Jackson is passionate every week. He loves rugby league. Once he is on the field, he is the ultimate competitor and that is exactly what we needed tonight.”