One of the most important aspects of training camp in the NFL is to try to avoid injuries as much as possible. While minor issues will always happen in those weeks, you'd like for nothing really serious to happen to players.
With that being said, here is a list of 8 players that didn't practice today:
Kyler Gordon
Velus Jones Jr
Byron Pringle
Duke Shelley
Kindle Vildor
James O'Shaughnessy
Dante Pettis
Angelo Blackson.
This is not great news for the team. On this list, you can see multiple players that are expected to have a pretty big role come Week 1. Hopefully, most of these are in fact minor issues.