
Possibilities include:
1-Tendinitis of the tendons on the top of the foot (extensor tendons).
2-Jamming of the big toe joint, a version of turf toe.
3-An strain of Lis-Franc's ligament- located in the middle of the foot.
4-A small fracture at the top portion of the heel bone that connects to the bones in the ankle.
5-A strain or partial tear of the smaller muscles in the foot known as the intrinsics.
6-A good old fashioned sprain of the lateral (outside of foot) ligaments.
Foot injuries are not to be treated lightly and hope that Kobe does not further injure himself by playing on it. We'll keep watching for updates or more information.
Bradford J. Jacobs, DPM
http://www.podiatrycarespecialists.com/