Arizona Cardinals May Have an Issue on the Offensive Line

The Arizona Cardinals have invested heavily along their offensive line since Steve Keim took over as general manager.

Jonathan Cooper was his first draft selection, he signed Jared Veldheer and Mike Iupati in successive years and drafted DJ Humphries and Evan Boehm.

To say Keim thought the offensive line was neglected prior to his stepping in would be an understatement.

Yet, after the Red and White Practice on Saturday, there still may be legitimate questions if the offensive line is a strength of the Arizona Cardinals.

First team D with 3 stops at the 1.

— Kent Somers (@kentsomers) August 6, 2016

First-unit D stuffs top O three times on goal line, including Red Bryant meeting David Johnson. #CardsCamp pic.twitter.com/sXE5AP6i4e

— Darren Urban (@Cardschatter) August 6, 2016

The offensive line was supposed to be Veldheer, Iupati, veteran center A.Q. Shipley, veteran guard Evan Mathis and young first round pick D.J. Humphries.

Yet, the only thing that has not been up in the air with the new offensive linemen is D.J. Humphries.

A.Q. Shipley looks like the starting center, but fourth year Earl Watford is getting plenty of reps at the center position as well.

Meanwhile, the veteran linchpin was supposed to be Evan Mathis, but two offseason ankle surgeries have caused him to miss time due to fatigue.  Antoine McClain has filled in nicely, but is that really what the Cardinals want to see game one?

Is it too early to be concerned or is the fact that the Arizona Cardinals are heading to week one of the pre season with question marks along the offensive line worth the conversation?