Alabama QB AJ McCarron in a walking boot upon arrival in Atlanta to face Virginia Tech. #Bama #VT #SEC pic.twitter.com/BwaLwQkmBH
— Cole Cubelic (@colecubelic) August 30, 2013
ESPN analyst Mark Schlabach later reported that McCarron was wearing the boot due to what's being described as "an ingrown toenail." An Alabama spokesman described the boot as "just a precautionary measure."
Whether this is the full story will probably never know. It will be something only McCarron, Nick Saban, and possibly Katherine Webb (but I digress rather ribaldry), know for sure.