The odd thing i see is Southgates sudden urge and need to play 3 at the back, he has picked 6 + Dier so im guessing that is how he will go about it.
Including players he hasent picked he has
Stones and Cahill who aren't being played by there club team, and i wouldnt trust Stones alongside 2 other inexperienced centre halfs
Harry McGuire on 3 caps who if his head wasn't so massive no one would notice him, he's a wannabe winger who gets pulled out of position so often that it would get really highlighted at international level
Joe Gomez on 2 england caps who hasent played centre half all season
Tarkowski and Mawson who dont have a cap between them. I rate Mawson but are we seriously going to throw someone into a world cup who has barely got a game
Smalling, Southgate has burnt his bridges with
Jones is injury prone
Keane has struggled at times without a leader this season so would be a nightmare alongside Stones