GLASGOW, Feb 21 (Reuters) - Defender Paul Caddis said Celtic were likely to need a miracle to overturn their 3-2 Champions League deficit in Barcelona in two weeks' time.
'In football nothing is impossible but we are probably going to need a miracle over there,' the 19-year-old told UEFA.com.
Caddis also spoke of the thrill of making his Champions League debut on Wednesday.
'Six weeks ago I was playing in the reserves up in Inverness and then I'm facing the likes of Ronaldinho, (Lionel) Messi, (Samuel) Eto'o and (Thierry) Henry,' he said.
'It's every boy's dream to play against a team like Barcelona.'
Celtic manager Gordon Strachan believes his side can improve simply by playing in the Nou Camp in the first knockout round second leg on March 4.
'We will go and try and get more experience over there which will help make us a better team in the future,' he said. 'Only in two or three years will you know if that experience has helped this bunch of players.
'We'll try and score goals. We scored twice at home so we showed it can be done.'
Captain Stephen McManus said the players could hold their heads high in spite of defeat.
'There's no shame getting beaten by a team like Barcelona but I felt we didn't pass the ball as well as we should have and that was the biggest disappointment,' he said.
'They're another level up from us. There are only so many teams that can win this tournament and they're certainly one of them.'
Strachan tipped Barcelona to lift the trophy.
'They are probably the favourites to win this tournament now,' he said.
'For us to have given them a real good game we had to have nine, 10 (players) at their best and we didn't have that.'