Morton boss Jim Duffy is worried a lack of experience could count against them when they play the Dons.
The Greenock side face Aberdeen at Hampden in the semis of the Scottish League Cup on Saturday.
Morton underlined their quality with an impressive 5-0 away win over Queen of the South in the Championship at the weekend.
But Duffy accepts taking on the Dons will be a totally different proposition for his side.
Duffy said: “We have a very young squad.
“We will prepare them as well as we can.
“But the one thing you can’t legislate for is how well younger players will handle the occasion of playing in such a big match.
“Aberdeen have younger players too, but theirs have big match experience while ours don’t.
“It’s the club’s first cup semi since 1979, so you don’t really know what will happen until the game starts.
“The worst case scenario is that they will freeze.
“We faced Celtic in the Scottish Cup last season, got caught up in the occasion and found ourselves three goals down by half-time.
“Hopefully, we will show we have learned from that and will be switched on from the start.”
Duffy admitted the thumping win in Dumfries was good for their confidence ahead of the clash at Hampden.
He said: “It was good, but we won’t get too carried away.”