The Dallas Cowboys have had some troubles in training camp—including an injury to Zack Martin. Martin has had back issues but the Cowboys have received some good news for their All-Pro guard.

According to Mike Fisher, a Cowboys insider for 247sports, Zack Martin's MRI shows no serious back issue. Martin has missed a couple of training camp practices with back soreness and back spasms.

Everyone knows that the Cowboys are predicated on running the ball with Ezekiel Elliott and having their behemoth offensive line lead the way. Elliott is holding out for a new contract and a serious injury to Martin would've worsened the blow.

Martin and the offensive line is crucial to what Dallas wants to do on offense. Last season, the Cowboys center, Travis Frederick missed the entire season due to a rare disease called Guillain-Barré syndrome. It's an auto-immune disease that causes his immune system to attack his nervous system.

As a result of his absence, the Cowboys struggled to protect Dak Prescott. In 2018, Dallas allowed 56 sacks as a team—the most that they've allowed since 2005. The void left by Frederick was obviously felt by the team in 2018.

Now, Frederick is back and the Cowboys believe they'll be right back to being a dominant offensive line once again. An injury to Tyron Smith, Martin, or Frederick could cause them to struggle, though.

Dallas will likely be cautious with Martin as there is no need to rush him back in the preseason. Jason Garrett knows that he'll need his offensive line to be fully healthy—especially if Elliott isn't in the backfield in Week 1.