Jason Heyward will be out 4-6 weeks after this disturbing injury
It clearly wasn't intentional by Niese, who was clearly upset after hitting Heyward with the pitch. Heyward leaned into the pitch a bit, and it probably didn't break as much as he was expecting it to
This is a huge blow for the Braves, but the good news is that they have a huge lead in their division over the 2nd place Nationals, and Heyward will likely be back at the end of the season and able to contribute in the playoffs.
In case you missed it, click here to watch video of the injury.