'This was just a really bad day at the office' - Schmeichel

No matter how old you are, always listen to your folks...

Peter Schmeichel urged son Kasper to "be a leader" in the deflated Celtic dressing room after last night's drubbing in Dortmund.

The legendary Manchester United goalkeeper was out in Germany on media duties and caught a word with the Celtic shotstopper as he left the field of play.

"You always want the best for your children, it doesn't matter what situation they're in," he told CBS Sports.

"This was just one of those days that you can never, ever explain. There were so many shots on goal, seven went in, there could've been a few more.

"As Callum McGregor said to me, it's just one of those days they couldn't get close enough to close them down.

"I spoke to Kasper as he left the pitch and I said to him: 'This was a bad, bad day at the office, take it for nothing more and move on. Be one of the leaders in the dressing room and help everybody else recover from this.'

"Don't forget, Celtic have played really, really good football and there is so much optimism at the club."