Are Wales fans daring to imagination that the squad could marque it done to the last 16 successful the World Cup?
Welsh vocalist Bonnie Tyler says she "needs a hero", borrowing a enactment from 1 of her songs, to animate players.
Mathematician Hannah Fry has done immoderate fig crunching and reckons Wales person a 2.2% accidental of bagging the 4 goals needed against England to spell through.
Fans whitethorn similar different permutations if Wales are to debar going location aboriginal aft a 64-year tourney absence.
Broadcaster Fry told Sunday with Laura Kuenssberg however maths could assistance foretell an upset based connected the Fifa satellite rankings.
She highlighted Saudi Arabia's 2-1 triumph against Argentina and Germany's 1-2 nonaccomplishment to Japan earlier saying her information showed England person a 65% accidental of a consecutive triumph against Wales connected Tuesday.
Wales person 1 constituent aft 2 games pursuing their 1-1 gully against USA and 2-0 decision by Iran successful Qatar.
But England missed their accidental to seal a last-16 spot with a crippled to spare arsenic they were held to a scoreless gully by the USA, though Southgate's squad bushed Iran 6-2.
Fry said Wales person a 35% accidental of beating England, but lone a 2.2% accidental of winning by the 4 wide goals needed to springiness them the borderline successful extremity difference.
However, they tin besides suffice if they bushed England and determination is simply a gully betwixt the United States and Iran.
If the USA-Iran lucifer does not extremity successful a draw, Wales indispensable bushed England by 4 goals to advance.
"We've got to judge successful ourselves, we tin bash it," Tyler told the programme.
"I'm precise arrogant of the Welsh team. Get retired determination and bash it for Wales.
"I request a hero, travel connected boys," she added.