Eric Dier warms up during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images
Harry Kane reacts during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images
Danny Welbeck and Danny Rose have a discussion during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Ruben Loftus-Cheek and Gary Cahill warm up during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images
Dele Alli shares a joke during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Kieran Trippier and Marcus Rashford in action during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Jan Kruger / Getty Images
England assistant coach Steve Holland speaks to the players while manager Gareth Southgate listens during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nick Potts / AP Photo
Harry Kane, Raheem Sterling, Jesse Lingard and Ashley Young in action during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Raheem Sterling takes a shot at goal during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
England manager Gareth Southgate looks on during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Eric Dier warms up during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images
Harry Kane reacts during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images
Danny Welbeck and Danny Rose have a discussion during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Ruben Loftus-Cheek and Gary Cahill warm up during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images
Dele Alli shares a joke during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Kieran Trippier and Marcus Rashford in action during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Jan Kruger / Getty Images
England assistant coach Steve Holland speaks to the players while manager Gareth Southgate listens during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nick Potts / AP Photo
Harry Kane, Raheem Sterling, Jesse Lingard and Ashley Young in action during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Raheem Sterling takes a shot at goal during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
England manager Gareth Southgate looks on during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Carl Recine / Reuters
Eric Dier warms up during a training session at St Georges Park on May 28, 2018 in Burton-upon-Trent, England. Nathan Stirk / Getty Images