David IrvingD | Cowboys

According to Mike Fisher of 247 Sports, Cowboys DL David Irving has missed multiple drug tests over the past two months.January 11, 2019 | 12:39 PM

He was suspended for the first four games of 2018 for violating the league's substance abuse policy and could be headed for another ban. Irving remains on the team's active roster, though a high-ankle sprain has kept him out since early November.

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