ARLINGTON, TX - NOVEMBER 26: Cam Newton #1 of the Carolina Panthers runs against Demarcus Lawrence #90 of the Dallas Cowboys in the second half as Randy Gregory #94 of the Cowboys and Greg Olsen #88 of the Panthers look on at AT&T Stadium on November 26, 2015 in Arlington, Texas. (Photo by Ronald Martinez/Getty Images)

As if things could get worse for the Cowboys' defense, disaster struck again

Another huge red flag.

The Dallas Cowboys front-seven has been ravaged with suspensions, as linebacker Rolando McClain (10 games) and defensive end Demarcus Lawrence (four games) were popped for violating the league's substance abuse policy.

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And now, it's gotten worse with last year's second-round pick Randy Gregory, who was already set to serve a four-game suspension stemming from a violation of the substance abuse policy, reportedly failing his fifth drug test.

Considered a top-10 talent heading into last year's draft, questions about his off-field issues dropped Randy Gregory into the second round.

Gregory failed a drug test at the NFL combine and failed two more last season before his latest, resulting in a four-game suspension, based on the NFL's drug-testing policy.

Gregory had 11 tackles and no sacks as injuries held him back last season. He'll be even further behind next year after this massive misstep.