Liverpool manager Jurgen Klopp gave his 'blessing' to Jordan Henderson for him to link up with the England squad.
Henderson has missed Liverpool's last three games in all competitions due to a hamstring injury.
According to the Daily Mail, Klopp is happy for Henderson build up his fitness with the national team ahead of next month's Premier League resumption.
England are preparing for Nations League fixtures against Germany and Italy.
Henderson is said to have made sufficient progress in recent weeks.