Celtic's Jos Hooiveld believes Braga could crumble in the cauldron that is Parkhead on Wednesday in their UEFA Champions League qualifier.
The Portuguese side arrive in Glasgow with one foot in the play-off door following a commanding 3-0 victory on home soil.
However, Hooiveld is not throwing in the towel and feels a packed Parkhead could make the difference in the return leg.
The Dutchman does not believe Braga will be accustomed to playing in front of such vast and partisan crowds and could buckle under the pressure.
"I hope it will be an atmosphere with 60,000 crazy Celtic fans screaming at them on Wednesday," explained Hooiveld.
"I think they aren't used to that kind of atmosphere. They could be our 12th, 13th and 14th man for sure.
"If you look at their attendance for the first leg then it was much smaller than what it will be on Wednesday and I think we can 'put the fire at their shins', as we say in Holland."
Some believe Celtic's gruelling pre-season tour of North America has sapped the energy from Neil Lennon's squad and Hooiveld feels it may have played a part in their disappointing first leg.
"If I had to choose, I would have done it differently," he added on the club's pre-season plans. "We have played so many games, we have done so much travelling.
"No matter how you do it, you're always going to lose energy from that kind of travelling. We should not have lost so much energy from that.
"On the other hand, it's good to play the likes of Manchester United and Arsenal. That is a good way to prepare, although I would have preferred it if it was in Lennoxtown, our training ground."