But he has only played in one of the past five games under Southgate.
"Privilege and an honour to be selected for England to go to the WC2018 in Russian Federation!"
Did he get the goalkeepers right?
Goalkeepers, Butland, Pickford and Pope have combined 9 caps between them.
Rashford furthered his urban legend by scoring twice in his first Premier League start against Arsenal - a game which United won 3-2 despite being heavily undermanned for the fixture.
England's third goalkeeper will only be used in extreme circumstances so it's a wise, forward-looking choice.More news: NRL fans react to Cameron Smith announcing retirement from representative footy
Delph hasn't played for England since 2015, but he is coming off a Premier League title-winning campaign with City.
He will be supported in central midfield by an established leader in Tottenham's Eric Dier, whose vocal approach will be invaluable.
While Southgate spoke of the pace and athleticism in his squad, Jack Wilshere and Jonjo Shelvey, both of whom were left out, offer a touch of the unpredictable.
Danny Welbeck: slated by supporters, rated by managers.
"This is Gareth showing a lot of trust in an older campaigner". They can also point to a respectable 15 goals in 37 worldwide appearances.More news: Lightning pull game back in Eastern Conference final
Skilful Liverpool midfielder Adam Lallana made his return from injury during Sunday's 4-0 win over Brighton. With relatively few surprises, the team offers a few potentially exciting World Cup newcomers. The Chelsea man also won Man of the Match in his senior debut for the Three Lions against Germany, back in November.
England is in Group G with Belgium, Panama and Tunisia.
Wilshere could have provided creativity but Southgate has refused to gamble - so who will fill in the gaps left behind? Lallana's injury-ravaged season has cost him, with England also denied the services of Alex Oxlade-Chamberlain following the knee injury he sustained last month.
Others pointed out that it will be a cherished memory and wonderful thing to be a part of for those who helped make it.
Leicester City defender Harry Maguire, meanwhile, recalled following England as a fan at Euro 2016. World Champions-1966 1990-beyond the quarterfinals at broke.
Joe Hart has been a stalwart in the England squad throughout much of his career.More news: Iran says USA sanctions derail nuclear deal
Cahill, Sterling, Jones and Henderson are the only players to have retained their places from the 2014 World Cup.