Celtic boss Martin O'Neill tells TNT Sports: "A really good performance. Hearts and soul into the game. Just when I thought we were going to drop two points, we came back again. So much spirit. "It's been tough in Europe, tonight was tough. We always still think about trying to qualify - at least we've given ourselves a chance. "We made some changes, freshened things up. We have to give the opportunity [to players] because we play a lot of games in quick succession. "The crowd gives us something and tonight was particularly special. It reminded me of the olden days."