England fans have sent the Three Lions stars a last minute warning about Sunday's opponents Croatia.
Gareth Southgate's side begin their Euro 2020 campaign at Wembley against the team who ended their World Cup dreams in 2018.
England are training at St George's Park and fans looked to lend a helping hand at training.
A plane flew over with a banner that read: "most #Cro goals come down left".
Ivan Perisic often plays down the left for the Croatians with Rangers star Borna Barisic operating at left-back.
Perisic scored the equaliser in the World Cup semi-final coming in off his wing before Mario Mandzukic scored the winner in extra-time from a similar position.
It means whoever plays right-back for England will need to bring their A-game and Southgate is not short of options.
He initially picked four players in that position, but it went down to three when Trent Alexander-Arnold was ruled out of the tournament.
It means one of Kyle Walker, Kieran Trippier or Reece James will play at right-back.
In attack England also have no shortage of options and Southgate's biggest challenge will be finding the right dynamic.
Who should start at right-back for England on Sunday? Have your say below
The England boss though is confident that his squad of 26 has sufficient experience to make a mark on the Euros.
“We have to show that this squad has what is required to win,” he told ITV.
“Some of our youngest players have got experience of big games. Tournaments are about hitting form at the right time and we have to bring everything over the next four weeks.”
Southgate's assistant manager Steve Holland was keen to point out that whilst the squad has a young average age, in terms of big game experience they are well stocked.
He said: “We are now in a different moment (to Russia). We also have a lot of younger players who are coming from our top clubs. I already mentioned the Champions League final.
“The team in Russia was fairly inexperienced. This will be a younger team in terms of actual statistics of age.
"I think the core of that group should be better as a consequence of Russia.
“We have shown great faith in the guys from an early age and the challenge is there for them to make the next step.
"If they can make the next step, there is no reason to believe we should not be in a better position.”