Why Jaxson Dart isn't playing today for Giants with injury news

New York Giants fans are missing their rookie quarterback.

Jaxson Dart isn't on the field on Sunday against the Green Bay Packers.

It's not Russell Wilson, either. 

Instead, Jameis Winston got the start for the Giants.

Russ is the QB2 on Sunday.

Dart isn't available.

Why isn't Jaxson Dart playing today?

Jaxson Dart is out with a concussion.

He was injured in the second half of the Week 10 loss to the Chicago Bears.

Wilson relieved him in that game.

But this week, interim coach Mike Kafka named Winston the starter while Dart sits.

The Giants entered the week at 2-8. None of these guys will be leading the Giants to the postseason.

But for this week, Winston is QB1, Wilson is QB2 and Dart is out.