Celtic assistant coach Tommy Burns insists there'll be no Old Firm hangover ahead of their clash with Benfica.

"Of course, it's hard for a couple of days after a match like that and [losing ]in the manner we did," said Burns. "But it's not something you're going to allow to hold you back forever. It's gone now and, if the league finished today, we'd still be champions. We are champions and the players have to use that to take into the higher level of the Champions League.

"We are a big club, this is the level we play at, it's what we do. Old Firm matches are what everyone wants to win and people are hurt when they go wrong. The fans would feel it, as we did ourselves. We're all fans, too, you know.

"There's always a reaction to defeats like Saturday's, but these things are always done to extremes with clubs like Celtic and Rangers. It's either excessive praise or over-criticism. We need to get our confidence back up and there's no better way of doing so than by getting a good result in Lisbon."