Brighton manager Graham Potter speaking to Sky Sports: "We weren't really bad - not that good either. The better team won.
"If you make an error against these types of teams, they can punish you, they've got good players.
Burnley manager Sean Dyche speaking to BBC Sport: "When you make the chances we did, the quality of them and hitting the woodwork twice, there's that little bit of psychology to it - 'Is it not going to be our day?' We come away disappointed.
Arsenal boss Mikel Arteta: "It wasn't in our hands. We tried to do our best, but it was not enough.
"This club deserves trophies and the Champions League and we haven't managed to do that in very challenging circumstances.
"Eleven against 11 against Brighton is tough, 11 against 10 is difficult so we have to improve for the final," said Guardiola.
"Unfortunately after 0-2, we conceded a goal so quick and after they push a lot, we were more tired and could not keep the ball as much as possible - we could not do it and unfortunately we lost the game.
Brighton boss Graham Potter, speaking to BBC Sport: "It's always a bit disappointing when you're 1-0 up with not long to go [and you don't win]. Over the course of the game a draw is a fair result - I wouldn't say we deserved more.
"I'm disappointed with the result, disappointed we couldn't get the three points," said Brighton boss Graham Potter. "Until you are safe you have to keep fighting.
"We gave everything and it wasn't to be.
righton boss Graham Potter to BBC Sport: "A big victory and a big performance, one with a lot of quality and a lot of character. I was disappointed with the last one and you have to respond, and the players did.
Manchester United boss Ole Gunnar Solskjaer told BBC Sport: "It's always difficult to play Brighton. We have had good results and we've had to earn them the hard way - we managed to find a way in the second half.
Newcastle manager Steve Bruce, speaking to BBC Match of the Day: “It’s difficult to digest at the moment. We simply weren’t anywhere near good enough on the night. Fair play to Brighton, they were better in every department.
Brighton manager Graham Potter told BBC Sport: "It feels sore. Overall our performance - certainly the first half - was good. We were close to getting a second.
"In the second half, Leicester responded and we didn't play as well.
West Brom boss Sam Allardyce, speaking to the BBC's Match of the Day: "I am just laughing about how bizarre this game was. Obviously, the most important thing for us was a clean sheet and a corner we converted very well.
Brighton manager Graham Potter speaking to BBC Match of the Day: "It's sore, I'm bitterly disappointed with the result because I thought we were the team pushing all the way, trying to get the winner ourselves.
Brighton boss Graham Potter, speaking to Sky Sports: "A hard earned point. A tough game against a good opponent. They pushed us all the way in the second half and I can't say we deserved more than a point.