Dallas Cowboys defensive end David Irving has been suspended for the first four games of the 2017 season for violating the NFL's policy against performance-enhancing drugs, the NFL announced Wednesday.
Irving, who started two of 16 games last season and finished with four sacks, will be eligible to return to the Cowboys' roster on Oct. 2. He is able to participate in all offseason and preseason practices ahead of the regular season.
Irving appealed the suspension in May after a source told ESPN that the issue stemmed from an over-the-counter substance Irving used in an attempt to endorse the product.