Hamann told the club's official website: We have been away to a few good sides in Europe over the last two or three years and overall we have done very well.
"It's important when games get passionate or get a bit heated that you have players who will keep their cool. I'm sure we'll cope with that.
"It's going to be a very exciting game for us. I have only played at Celtic Park once before and that was for Bayern Munich in a friendly. But a few of our lads remember the last time Liverpool played there a few years ago and they said it was a great occasion.
