Maurice Jones-Drew injury: What is Lisfranc?

The early diagnosis on Jaguars' running back Maurice Jones-Drew is a Lisfranc injury. Jones-Drew suffered the injury on his first carry of Sunday's game against the Raiders and was soon taken out of the game, then seen using crutches on the sideline.

Lisfranc is the same injury that kept Texans' quarterback Matt Schaub out of his team's playoff run last season, and also sidelined Jets' wide receiver Santonio Holmes this season. Adam Stites at Big Cat Country took the time to explain what Lisfranc actually is.

The Lisfranc joint complex is a meeting in the arch of the foot of bones and ligaments, and a possible injury to the region of the foot can be either a fracture, sprain or ligament tear. Jags head coach Mike Mularkey said it's unlikely that Jones-Drew has a bone injury, but the severity of the injury is still difficult to pinpoint.

If Jones-Drew does have the Lisfranc injury, his season could be done.