O'Neil later said: "Brighton are a really good side, the way they play, tough to get the ball back off, the lads were disciplined, we know that's how they play. They do take risks though, they do leave you with opportunities to counter attack and win the ball back and we did have probably equal amount of good opportunities as they did, just that they had a lot of the ball and the lads had to defend and be resolute.
"The crowd played a massive part in helping the boys later on in the game when you could see we were tiring. The noise from the stadium was incredible. A really good evening, tough side to beat and we're delighted to get through to the quarter-finals."
On his selection for the match, he also said: "Really pleased (with the players who came in), it was a really tough team to pick. Channy (Hwang Hee-Chan) felt his hamstring a little bit which for a squad as small as this, especially in that area, is a disaster but trying to pick the right ones to rest and which ones can play was a tough couple of days for us. Channy's doesn't look too serious, seems like a little one.
"But the lads who came in, I thought Doc (Matt Doherty) was excellent defensively. very very good. Tommy Doyle was very good, (Jean-Ricner) Bellegarde started to tire, started to lose his quality a little bit towards the end but he caused them some problems. So delighted really, delighted that we were able to change it and still win the game, because winning the game was the most important thing but we're a small group and we can't afford to just keep injuring people so we needed to be clever and apart from Channy we got through it ok."