Zack Martin - Dallas Cowboys Guard - ESPN
Sources - Cowboys' Zack Martin considering not reporting to camp
Tampa Bay Buccaneers Pro Bowl guard Ali Marpet retires at age 28
Source - Cowboys guard Zack Martin doesn't report to camp - ESPN
ESPN ranked the best lineman in the league who was No. 1?
Fans call out Jerry Jones over frugality to pay Zack Martin
Why the Dallas Cowboys drafted him: Zack Martin - ESPN - NFL
PFF: Zack Martin ranked as ninth best player in NFL - On3
Anonymous exec grossly underrates Cowboys G Zack Martin on ESPN list