Dallas Cowboys linebacker Randy Gregory has been suspended four games by the NFL for violating the league's substance abuse policy.

Gregory had been projected as a possible top-10 overall pick in last year's draft before failing a drug test at the NFL scouting combine and falling to the Cowboys at No. 60. The former Nebraska standout was placed in the NFL's rehab program, which requires testing throughout the season.

It appears he will miss the first four games of the season for a second straight year after doing so in 2015 due to injury. He ended up having a quiet rookie season with no sacks and 11 tackles in a part-time role.

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