Roy Hodgson tossed and turned last night trying to block out the potential for a World Cup nightmare he is convinced England will avoid at Wembley.
As he faced up to the biggest match of his entire career as his side take on Poland for a place in the World Cup, the 66-year-old admitted sleep would not come easily. He accepted he was worried.
But he also confirmed he has total confidence in England to collect the three points from their final qualifier that will secure an automatic passage to next summer's finals in Brazil.
"It won't be my best night's sleep because all of my waking thoughts are around England versus Poland," said Hodgson.
"I'm a worrier. Anyone who works in football is a worrier.
"But I have great faith and trust in the players.
"I couldn't be putting a stronger or more confident bunch of players onto the field."
Hodgson was in South Africa in 1973, when England took on Poland in a game they needed to win to reach the World Cup but only drew.
"I was preparing to come home," he said.
"I was going to get on the train to Cape Town, then a boat from there to Southampton. There was no television in South Africa at that time."
"I couldn't be putting a stronger or more confident bunch of players onto the field," - Roy Hodgson
He has experience of such tense situations though, having spent time with Glenn Hoddle ahead of England's visit to Rome in 1997 for the goalless draw with Italy that proved enough for qualification.
"He was quite relaxed," said Hodgson.
"It was a very big game but I didn't get any particular vibrations that he was suffering in any way.
"His approach was probably like ours: 'I've got a good England team that's capable of producing a result'."