Jordan Black has been suspended for four NFL games after breaching the league's policy on performance-enhancing substances.
The Washington Redskins tackle made a rare appearance on Sunday, filling in for Tyler Polumbus, who was out with a concussion.
Black is the sixth Redskin to fail a drugs test in the last two seasons.
The 32-year-old will miss the remaining regular season games, and the playoffs should Washington make the postseason.