The Dallas Cowboys saw a few guys go down in last night's preseason game, but none scarier than All-Pro guard Zack Martin. Thankfully, they got some good news today on Martin's status.

An MRI of the knee showed no major injury, and that means Zack should be good to go for the team's regular season opener in three weeks.

David Moore on Twitter

Cowboys have received results of Zack Martin's MRI & it's encouraging. Source said there's no significant injury to left knee & he could be ready for opener against Carolina on Sept. 9.

Last week, Dallas lost one of their likely reserve guards when Marcus Martin went on injured reserve after the first preseason game. That leaves just Joe Looney as the only trusted reserve right now for the interior line.

But even though Looney has played well at times when called upon, he's no Zack Martin. In fact, only a couple of guys in the entire NFL can claim to be on that level.

Sprains and other non-major injuries to the knee tend to fall into the 2-4 week range for recovery. Barring complications, Martin should be ready to take on the Panthers' Kawann Short, Dontari Poe, and others.

We're still waiting for updates on other key players who were injured last night, such as Safety Xavier Woods, Running Back Bo Scarbrough, and Defensive Lineman Datone Jones. We'll get those to you as they are announced.

Hopefully, they all get the same good news that Zack Martin did today.

Last Saturday night didn't end well for the Dallas Cowboys, who saw multiple players go down throughout the game, most notably Zack Martin and Xavier Woods. Preseason injuries are always the more painful ones, and when we're talking about someone like Martin, it just makes it worse.

Martin suffered a knee injury and was ruled out after going down. ESPN's Todd Archer tweeted out that a source had claimed the injury was a hyper-extended left knee. This surely would be great news considering the fear right now is a season-ending injury.

Todd Archer on Twitter

A source said the initial diagnosis of Zack Martin is a hyperextended left knee, but he will undergo an MRI on Sunday. The Cowboys do not practice again until Monday and play Aug. 26 against the Arizona Cardinals. Depending on the severity of the... https://t.co/1MPbJfQph8

Zack is set to have an MRI on Sunday and the team is hopeful the injury isn't that serious. We probably won't see the All-Pro left guard return in the preseason but could see him back on the field as soon as September 9th when the Cowboys kick their season off at Carolina.

Besides Zack Martin being the best offensive guard in the NFL, the Cowboys' offensive line depth is definitely not good. If his injury proves to be worse than what the front office believes, this offense will have to play without arguably their best player.

As we nervously await more news on Martin's knee, there are more injured players to talk about.

Xavier Woods injured his hamstring as he made an effort to intercept the ball and was also ruled out for the game. We still don't know about the severity, but we do know it's the same hamstring that he dealt with last year.

Although Woods isn't anywhere near Zack Martin as a football player, his injury comes at the team's weakest position in depth. Jeff Heath, Kavon Frazier and Xavier Woods are the Cowboys' only legitimate safeties that will earn a roster spot.

If the hamstring injury is serious enough to keep him sidelined for multiple weeks, we could see the Cowboys getting outside help for the defensive backfield. Whether that means trading for Earl Thomas, some other safety or looking at the free agents available, I don't see the team going into the season with two safeties on the roster.

For now, we need to wait for more results regarding both of these players who will be detrimental to this team's success in 2018. The Cowboys suffered more injuries than these ones, though.

Saad Yousuf on Twitter

And the injuries continue... Jameill Showers is down on the Cowboys sideline with what looks like a knee injury. Still down. Duke Thomas Datone Jones Bo Scarbrough Xavier Woods and the big one, Zack Martin That's the injury list for the Cowboys tonight.

Datone Jones has been impressive during his stay in Dallas and is a quality DT and was ruled out for the game after getting tangled up with the Bengal's offensive line. Seventh-round draft pick Bo Scarbrough suffered a hip injury and is apparently not severe either.

Compared to Woods' and Martin's injuries, these ones won't keep Cowboys' fans up at night. However, hopefully they all turn out to be okay and ready to play as soon as possible. The team's starters make this team a legit threat in the NFC, but when it comes to depth, they're not in a good position.

After missing the team's walkthrough this morning, it is being reported that Dallas Cowboys starting center Travis Frederick is having his shoulder evaluated due to multiple stingers. According to reports, Frederick has been dealing with stingers all training camp, and the Cowboys are unsure what is wrong with his shoulder.

Frederick rarely misses any practice time at all, and has not missed a start since he entered the league in 2013. He's the catalyst of this offensive line, and will be greatly missed if his injury is severe enough to make him miss regular season game time.

David Helman on Twitter

Jason Garrett says Travis Frederick is getting his shoulder looked at in Los Angeles. He's been dealing with stingers. No update behind that #cowboyswire

Joe Looney has been tasked with replacing Frederick for the time being, taking first team center reps during today's walk through and practice.

Given how meaningless Saturday's game is, I'd expect Looney to start at center against the Bengals this weekend as well. Hopefully the evaluation reveals that Frederick's issues are not serious and he will be ready for game one, but consistent stingers will always make fans fear for the worst.