3 Cowboys players who have gone missing at training camp
These Cowboys have been concerningly quiet over the first three weeks of training camp.
By Jerry Trotta

2. Matt Farniok
Talk about fumbling a golden opportunity.
With Zack Martin holding out amid a contract dispute, Farniok has opened a number of practices as the Cowboys' starting right guard.
We hadn't heard much of Farniok over the first two weeks up until a few days ago when Mike McCarthy told reporters that the second-year linemen will focus more at center (his natural position) than guard.
The reason being? Farniok has endured some tough reps at guard, including getting bullied by first-round pick Mazi Smith, who hasn't exactly stolen the spotlight in Oxnard. As we alluded to earlier, Farniok is a case of a player whom fans haven't heard from because he's struggled to make an impact.
Now, he's a talking point for all of the wrong reasons, though the switch back to center could be a blessing in disguise with Tyler Biadasz nursing an ankle injury. Remember, Biadasz suffered a high-ankle sprain late last season, so it's likely Dallas is extra cautious with its staring center.
That could lead to Farniok seeing extensive work at center in preseason.