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One of the NFL's best interior offensive lineman might not show up to training camp. ESPN reports Dallas Cowboys guard Zack Martin believes that he is "woefully underpaid relative to the market" and is considering not reporting to camp next week. The eight-time Pro Bowler is entering the sixth year of a seven-year, $93.41 million deal that he signed in 2018. The 32-year-old is set to make around seven-million-dollars less than the league's top-paid guards. Chris Lindstrom of the Atlanta Falcons and Quenton Nelson of the Indianapolis Colts top the list with a $20 million per year average.