Comming Back to US under Work Comp

Hello everyone,

Recently I got injured at work (tibia fracture), I'm under Temporal Total Disability, I would like to go back MX a couple of days, does anyone see any issue comming back with crutches with the CBP? I'm under TN Visa, my concern is really that the CBP is going to ask how do I will work, I'm not sure of this could be something strange for them.

Aprecciate you help.