Here are the things to know about the youngster Jadon Sancho who is set to make his first appearance for the England senior team Three Lions. "It's a good time in their development to train with us and see how they adapt".
The England squad in full...
With England, Sancho has won Federation Internationale de Football Association U-17 World Cup in 2017 the UEFA European Under-17 Championship Golden Player and was part of the Team of the Tournament.
With Dele Alli and Jesse Lingard injured and Adam Lallana and Ruben Loftus-Cheek making their way back to fitness, Southgate has turned to youth. We think there are some exciting young players that we've been tracking, either through their clubs or our junior teams ...
With the security of a new contract and the backing of Favre and Zorc in particular, the goals and assists look likely to continue for Sancho.
"He's been fearless enough to go overseas and play", Southgate said. He has been courageous enough to go and play overseas and has started two Champions League games for Dortmund and has also had a big impact from the bench in their league games.
Since his move from Norwich City for £20 million, the 21-year-old has been in fine form for the Foxes, having bagged three goals and two assists for the side so far.
Maddison has created more goalscoring chances than any other English player in the Premier League this season.
One of England's weak points in recent years, including at the World Cup, was a lack of creativity and vision in midfield.
"The clock isn't here anymore, but what it did, it shaped our thinking and our behaviours", said the England boss, who also called up Harry Winks, Ross Barkley and Nathaniel Chalobah.
England lost to Spain 2-1 in its first match in the newly formed Nations League. These calls however are likely to be resisted by Southgate for now, in favour of letting Sancho improve with Aidy Boothroyd's Under-21 side first.
The manager's continuing preference for promise over experience underlines his determination to build on, and better, the summer run to the World Cup semi-finals. If he sees out his deal, he will be longest-serving England coach since Bobby Robson (1982-90).