JACKSONVILLE, Fla. -- The NFL Trade Deadline is just six days away, giving Jacksonville Jaguars general manager James Gladstone a closing window to add to his contending AFC squad.

The Jaguars are sitting pretty in the AFC South at 5-2, but that doesn't mean there aren't some real needs left on this team. The most pressing of those needs looks like it is centered around the defensive line.

With the Jaguars getting hit by a season-ending injury to star nose tackle Davon Hamilton on Sunday, defensive tackle went from a notable need to an alarming one. The Jaguars have been in the defensive tackle market before, and they did reportedly have interest in Jeffery Simmons, and the latest reports make it clear the Jaguars want to swing big.

"My understanding is the Jacksonville Jaguars and James Gladstone, the general manager, have been working the phones over the last several days targeting a top-tier defensive lineman," NFL Network's Ian Rapoport said Tuesday.

So if the Jaguars do want to land a potential…