Rib injury, perhaps because of belt?

[Isaac Medina]

Now, will knee wraps help with that as well?

Thank you for telling it like it is. You sure have a way of calming down weenies like me

[3rdcoast_slope]

It's probably a costal cartilage. It will heal in a couple of weeks. While it's healing, put a knee wrap around your torso to support it when you train. You need a three-inch belt.

The Belt and the Deadlift | Mark Rippetoe

Equipment | Starting Strength

After using a 3inch for 6 years, I tried a 4inch one DL day, this is what happened to me too. Didn't crack a rib, but definitely got the cartilage.