That’s according to Elland Road teammate Tyler Roberts, who has backed the Whites favourite to make a big impact at the tournament.
Roberts himself will be representing Wales in the competition, but has been quick to hype up his good friend ahead of things getting underway on Friday evening.
“They have obviously been there from the start under Marcelo Bielsa like a lot of us but they have been playing for the last three seasons,” he told The Beautiful Game Podcast.
“For them to come in and kind of just handle the Premier League life the way that they have has just given everyone else that kind of security and safety as in we can all do this. It’s definitely been good for all of us.
“Obviously Kal is with England now and he has stepped up a lot.”
He added: “The way that Kalvin plays, I love it.
“If I want a CDM [central defensive midfielder] I want him holding it down and making big tackles and when he is getting on it he is just hitting diags.
“If I had a CDM I want him to play like that, so for me I would be starting him in any team really.”
Phillips has already made eight appearances for the Three Lions, and was named as one of Gareth Southgate’s original 26-man contingent for the Euros.
We’ve gathered the best of today's Premier League transfer rumours below...
“They have obviously been there from the start under Marcelo Bielsa like a lot of us but they have been playing for the last three seasons,” he told The Beautiful Game Podcast.
5. Villa in mix for King
Aston Villa have joined the race to sign striker Josh King. The forward is set to leave Everton on a free transfer this summer after just six months at Goodison Park – and the race is hotting up for his signature. Norwich City and Celtic are also keen. (VG) (Photo by Michael Regan/Getty Images)
Photo: Michael Regan
6. Leeds keen on Wilson
Leeds United are in talks over the potential signing of attacking midfielder Harry Wilson from Liverpool. (Mercado Ingles) (Photo by Valerio Pennicino/Getty Images)
Photo: Valerio Pennicino
7. United to open Pogba talks
Manchester United will seek talks with Paul Pogba over fears the France international will run down his contract. (ESPN) (Photo by FRANCK FIFE/AFP via Getty Images)
Photo: FRANCK FIFE
8. Pereira speaks to Leeds
Matheus Pereira has spoken to Leeds United over a potential summer move to Elland Road following West Brom’s relegation. (Mirror) (Photo by Michael Steele/Getty Images)
Photo: Michael Steele