Midfielders: Julian Weigl, Emre Can, and Mario Gotze

This is arguably the toughest area of the field to break in for a Germany player hoping to make the squad. Toni Kroos, Mesut Ozil, and Sami Khedira are sureshot starters for the Germans if the past is anything to go by.
The other central midfielders in the squad, Ilkay Gundogan, and Leon Goretzka have both earned their place in the side after a good season for their respective clubs.
Julian Weigl has been a crucial player for Borussia Dortmund for four years now and is the man who makes the team tick. In fact, Toni Kroos was once asked ‘which current player reminded him of himself’ during a Q & A session on Twitter and the Real Madrid ace replied: "Julian Weigl is going to be a world-class player".
Despite such praise, Weigl has only been capped five times by Germany.

Emre Can, on the other hand, was in and around the national team picture for a while now and was part of the team that played in Euro 2016 and also the one that won the Confederations Cup. The Liverpool man was enjoying a terrific season before an injury kept him out of the latter stages of the season. As things stand, Can hasn’t recovered fully and that might be the reason, Low has not included him in the World Cup squad.
Finally, Mario Gotze! If you’ve followed Gotze’s career in recent years, it would not surprise you that he isn’t part of the World Cup squad as a combination of injuries and form has tormented Germany’s Golden Boy. It would be unfair to say that Germany would miss him given the quality at their disposal but as humans with emotions, it is sad not to see the scorer of the winning goal in 2014.