Three Lions boss Gareth Southgate is in the process of cutting down his 33-man provisional squad ahead of the tournament in Germany.
Already Tottenham’s James Maddison and Curtis Jones of Liverpool have made way.
And Jones’ club team-mate Jarell Quansah is another expected to miss out despite not yet leaving the England camp.
Burnley goalkeeper is also out to leave Jordan Pickford, Dean Henderson and Aaron Ramsdale battling it out for No1 spot.
And according to The Athletic, so too are experienced pair Grealish and Maguire in what goes down as two huge calls.
SunSport also understand Everton’s Jarrad Branthwaite is also sweating on his place in the final squad.
England will kick off their Euro 2024 campaign against Serbia on June 16 before playing Denmark four days later.
The Three Lions’ final Group C match will pit them against Slovenia on June 25.
Maddison was one of the first to emotionally speak out after his snub but wished his international team-mates the best.
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He posted on X: “Devastated doesn’t quite cut it.
“Trained well and worked hard all week but if I’m honest with myself, my form for Spurs when coming back from injury in the second half of the season probably wasn’t at the levels I had set which gave Gareth a decision to make.
“I still thought there would be a space for me in a 26 man squad as I feel I bring something different & had been a mainstay in this whole qualifying campaign for Euro 2024 in Germany but the manager has made the decision and I have to respect that.
“I’ll be back, I have no doubt. Wishing the boys all the luck in the world out in Germany, unbelievable group and lads that I literally call some of my best friends. I genuinely hope football comes home.”