Will Greenwood says it will be hard work returning to domestic rugby after England's World Cup heroics.
Greenwood celebrates England's 20-17 victory over Australia
The Harlequins centre is set to attend training on Wednesday in time to be considered for his club's Zurich Premiership match against Leeds on Saturday.
"How do we get up for another game? I haven't got a clue," said Greenwood after Saturday's 20-17 win over Australia.
"I was talking to Aussie Daniel Herbert. He said he didn't sleep for four days after they won it in 1999.
"I'll see my wife on Tuesday and go back into training on Wednesday. We'll make a decision then.
"There might be a breathalyser test. Is it illegal to play under the influence?"
Greenwood said the England team would only realise the enormity of their
achievement when they arrived back home on Tuesday.
But he reckons Jonny Wilkinson's winning drop goal went down as well as David Platt's last-ditch strike for England against Belgium in the 1990 football World Cup.
"To me, I can imagine it was just like that David Platt goal," said Greenwood.
"In 1990 I was sill at school at Sedburgh and we were all crammed around a TV.
"Paintings were coming off the wall, chairs were getting smashed up and people were jumping around. That's how I imagine it was back home.
"But at the moment for us it feels like it's been a successful England tour.
"It will probably hit us when we get back. The phones have been red hot from back home."