My take? Well, he clearly hurt his lower leg/foot. That much is fact. What's less clear is the extent of the injury. Everything is speculation. And I've reached the point where I'm tired of the implications.
Soooooo....I'm just going to assume the injury, whatever it is/was, isn't season-threatening, and take the ignorance is bliss approach. Frankly, at this point, it just isn't doing me any good to think about what it might be or the potential negative impact it could have. So, if he can't wait to get to Lexington, I'm choosing to read that as a positive sign that he's looking forward to the season.
If there are those among you who want to dig into this deeper, nothing in what I've written is meant to demean your choice. If I had more energy, maybe I'd do likewise.