Chris Ivory, running back for the New Orleans Saints had just undergone Lis Franc's surgery of his foot. The Lis Francs ligament is an important structure of the mid foot. With this type of surgery, there is a long recovery time. This could take up to 8-12 months to fully heal. This type of injury can be misdiagnosed. One common mechanism of injury is a direct trauma or stepping your foot in a hole. Its always a good idea to have your feet checked if it is not getting better. A simple sprain may turn out to be something more important.