The Celtic midfielder, 20, was set to come on as a late substitute in the famous Group G win against the Catalan giants at Parkhead in November.
However, a 90th minute strike by Messi to make it 2-1 to Celtic meant McGeouch was stood down as the Scottish champions saw out the last few seconds.
The Hoops' trip to Turin for the second leg of their last-16 tie with Juve looks to be an exercise in futility after a 3-0 defeat in the first game at Parkhead.
However, ahead of the SPL clash against Motherwell at Fir Park where the Scotland Under-21 player hopes to make his third successive start, he admits to having one eye on Italy.
He said: "Every opportunity you get you need to take and hopefully if you do well you can get involved in the Champions League.
"I was on the bench for the Barcelona game. I was just about to come on and Messi scored so that put the dampener on that.
"It was the last couple of minutes, to run down the time.
"I was standing there at the side of the pitch and Messi scored so that ruined my chances - although I suppose it is okay if it is him.
"Growing up watching the Champions League, it would be great to be involved in it. "Most of us are new to it this year and it would be great to get an appearance. Hopefully I can do that and hopefully we can go over there and get a positive result."