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...

. LEEDS, ENGLAND - APRIL 25: A general view inside the stadium prior to the Premier League match between Leeds United and Manchester United at Elland Road on April 25, 2021 in Leeds, England. Sporting stadiums around the UK remain under strict restrictions due to the Coronavirus Pandemic as Government social distancing laws prohibit fans inside venues resulting in games being played behind closed doors. (Photo by Jon Super - Pool/Getty Images)
Elland Road (Photo by Jon Super - Pool/Getty Images) Photo: Pool

. Everton want Potter
Everton chief Marcel Brands is keen on Brighton manager Graham Potter, as the Toffees hunt their new boss. (The Athletic) (Photo by Neil Hall - Pool/Getty Images) Photo: Pool

1. Everton want Potter
Everton chief Marcel Brands is keen on Brighton manager Graham Potter, as the Toffees hunt their new boss. (The Athletic) (Photo by Neil Hall - Pool/Getty Images) Photo: Pool

2. Gayle set for exit
Newcastle United will sell or loan out striker Dwight Gayle in the summer transfer window. (Northern Echo) (Photo by Stu Forster/Getty Images) Photo: Stu Forster

3. Race on for Kabak
Leicester City and Newcastle United have their eyes set on Schalke’s Ozan Kabak for this summer. (Bild) (Photo by David Klein - Pool/Getty Images) Photo: Pool

4. £25m for Wood
West Ham United are interested in signing Chris Wood from Burnley this summer, but will have to pay the Clarets £25 million for the striker. (Mirror) (Photo by Jan Kruger/Getty Images) Photo: Jan Kruger