There isn't.
Rib injuries do heal. Rib injuries heal by rest. Giving Sammy a solid month of no contact MAY allow Sammy's ribs to heal. (Its probably not his actual Rib Bones that are injured it is probably the muscle systems around his ribs that are injured and causing pain)
Having grown men dive at Sammy's midsection (remember no more headhunting in the NFL) and throwing him to the ground where his midsection will come into violent contact with the ground does not qualify as resting.
So on Week 1 when he is thrown to the ground by a grown man he will re-aggravate the rib injury, then in week 2 when he is thrown to the ground by a grown man, he will re-aggravate the rib injury, then in week 3 when he is thrown to the ground by a grown man, he will re-aggravate the rib injury and repeat until the end of the season. He will not have time for the ribs to heal unless he misses games.
So if he did not play Yesterday he could have 3 weeks of no contact until Week 1. Here is the big decision point for OBD, Sammy could have missed 1 regular season game and got 1 month of no contact if he missed week 1. Where as throughout the rest of the year he would have to miss at least 3 regular season games (+BYE week) in order to get 1 solid month of rest.
Which is a greater loss Sammy missing 1 game in order to achieve a solid month to heal or Sammy missing atleast 3 games to get a solid month to heal?
You do raise a good point though, Sammy will definitely learn to play with injuries this year. That is for sure.