Southgate took the opportunity in his Friday press conference to condemn the leak by the press and effectively give his side's opponents the opportunity of seeing their line-up in advance.
"It's definitely advantage for us or for the opposition if you know the tactics of the other team".
"At every World Cup, every European Cup we make fun of the England team, the England players for their hilarious behaviours".
Journalists have faced criticism for publishing the contents of the sheet but Southgate says he is unfazed. I am totally relaxed.
The leafcutter ants gave England their backing when the insect carrying the England flag beat the one carrying Panama's flag back to the queen after racing along 36m (118ft) of rope. It is a squad of 23 names on the sheet, the next sheet has different players in different positions because we swap people in and swap people out. Blas Perez is expected to once more lead the line at the age of 37, though Jose Luis Rodriguez, who has just turned 20, could be included again having impressed on his debut against Northern Ireland in the build up to this tournament. We have to get results. "And I think it's key to teams doing well at tournaments".
When I come to the Federation Internationale de Football Association workshops they were keen for us not to train to protect the pitches.
Mexico dreams big at World Cup after beating Germany
But back in Mexico , the aftershocks of celebration will likely continue through the week. Before Sunday's match, Mexico had never defeated Germany in an official competition.
The estimated population of England is 55,268,067, according to the Office for National Statistics, which makes it one of the 30 most populated countries in the world.
Pictures of a note bearing a hand-written lineup carried by Holland at England's training base in Repino on Thursday suggested Rashford, rather than Sterling, will start up front alongside Harry Kane while Ruben Loftus-Cheek comes in for the injured Dele Alli in midfield.
Richard Nicholson, of Cannon Hall Farm, near Barnsley, South Yorkshire, said he was optimistic as the mini-stunt had already predicted an England win against Tunisia.
"I think it's the nation's job", the Manchester City defender added.
"We've done a lot of due diligence on Panama over the last few months, so we don't expect too many surprises in terms of how they play", he said.