Randy Gregory, the Dallas defensive end who failed a marijuana test at the NFL combine last year and slid to the second round in the draft, will miss the first four games next season for violating the league's substance abuse policy. The NFL announced the suspension Friday, saying Gregory will be eligible for offseason workouts and preseason practices and games. The former Nebraska star acknowledged his struggles with marijuana after the Cowboys got him with the 60th pick when he had been projected as a top 10 selection. More...