Manchester United boss Sir Alex Ferguson denies their youth system suffers in comparison to Manchester City's.
Ferguson was riled when it was pointed out to him on Friday that City seemed to have a greater number of young English players coming through their academy system.
"That depends on the quality you're talking about," he responded testily. But he did admit that he had not expected his youthful team to make it this far in the competition.
"It's a bonus, really. We hadn't planned to be in the final when we put in the young players. We thought, 'Yeah, get a run, get to the quarter-final, semi-final, whatever, see what they're made of'. But they have progressed well."