Neil Lennon reacted to Celtic's nightmare Champions League group by banging his head off a table as he watched the draw live with his players.
The joy of Wednesday night's fantastic 3-0 win over Shakhter Karagandy of Kazakhstan, who had led 2-0 going into the Parkhead leg of the final qualifying round tie, was shortlived when the Hoops were drawn to face Spanish giants Barcelona, Italian side AC Milan and Ajax of Holland.
Celtic now face a hugely difficult task if they are to emulate last season's run to the last 16, where they lost to Juventus after beating Barca to get that far.
"It's the best and worst draw," said Lennon.
"In terms of glamour it doesn't come any better. In terms of football it's the most difficult.
"The hard work done was done last night and we can go and enjoy the competition now."
The good news for Lennon, however, is that he has played a part in wins over all three opposing teams as player and manager of Celtic.
As well as last season's famous Parkhead victory over Barca, Lennon was in the team that beat Milan in 2007 and Ajax in 2001.
"They're great footballing arenas and three great clubs," said Lennon.
"We're locking horns again with Barca, that's great. There will also be at least three more great nights at Celtic Park.
"There is so much to savour."