AP

There’s apparently a very good — and pressing — reason the Jets signed Packers cast-off quarterback Graham Harrell.

They are running out of healthy quarterbacks for the final preseason game.

According to Brian Costello of the New York Post, Jets third-stringer Greg McElroy re-injured his knee in practice this week, which leaves Matt Simms as the expected starter in tomorrow’s preseason finale.

Mark Sanchez is currently rehabbing his shoulder injury, and if Simms is starting, they’re simply holding back Geno Smith to have him ready for the regular season (unless Sanchez is well and chosen to start).

The move only underscores the consistent ridiculousness of the fourth preseason game, as well as what a bad situation the Jets are in when it comes to quarterbacks.