The Cork minor manager, Brian Herlihy, was making no excuses for the defeat when talking to the press after the game.
"We had intensity in the first half and played well but Donegal upped their game in the second half and we dropped off," said Herlihy.
"Whereas we bossed the game in the first half, Donegal bossed the game in the second and they got two goals. And that was the difference at the end of the day."
The Cork boss felt his side lost out in the final quarter.
"We got a couple of sniffs but didn't take them and Donegal closed it out in the last ten to 15 minutes or so."
Asked if there was a significant turning point, he didn't feel there was and that Donegal came back into the game.
"They kinda crept in to it really. We needed one or two more scores. We just needed to keep the scoreboard ticking over but we took a few wrong options and a couple of interceptions gave Donegal a lift. And with young fellows, the team that has the momentum is generally the team that will see it out and Donegal definitely had the momentum there in the second half.
"Even after Donegal got the goal in the first half, we came back and got a few scores. Donegal were always going to come at us. They are a good team, very strong and I think the energy seemed to be sucked out of us in the second half," said the Cork boss, who added that the team were devastated in the dressing room.