Once again, veteran Pittsburgh Steelers linebacker James Harrison seems to be skeptical of the NFL's drug-testing methods.
The 39-year-old Harrison, who will be entering his 14th season, used Instagram to post a picture of a test sample while pointing out in the caption that he's received three random tests in the last three months.
NFL players can be tested up to six times in an offseason, according to the Collective Bargaining Agreement, but Harrison has suggested in the past that he's been unfairly targeted and has been known to joke about the league's drug-testing tendencies.