The Dutch goalkeeper maintained his 100 per cent starting record in the competition this season but was left devastated with his team-mates as United came from behind to win 2-1 at Wembley.
“The disappointment is big because if you dominate a game like that normally you end up as a winner,” said Michel, who signed his first professional contract at FC Utrecht in 2000.
“If we can keep a clean sheet in the first half or score the second goal, these kind of things, but it’s just if, if, if…football can be cruel and this is one of those days.