Two people with knowledge of the decision say Zack Martin is retiring after a decorated career that included seven All-Pro seasons at right guard with the Dallas Cowboys.

A brief explanation of why the Cowboys won’t see immediate relief from Martin’s retirement and why they set things up this way.

And that is not even taking into account other glaring needs such as running back, wide receiver, and defensive tackle.Fortunately, at least according to a recent three-round NFL mock draft, the Cowboys will fill three of those holes,