Buffalo Bills offensive tackle Seantrel Henderson is facing a four-game suspension for violating the league's substance abuse policy, reports ESPN's Adam Schefter.
According to the report, the suspension is under appeal and the failed test was caused by a treatment for Crohn's disease. Henderson was diagnosed with the disease last season.
It is not known if the appeal will be heard before Buffalo's season opener against the Cleveland Browns on Sunday.
Henderson, 24, has started each of the 26 games he has appeared in since being drafted in the seventh round of the 2014 NFL draft.
If Henderson's appeal is denied, he would be the Bills' third player to be suspended this year. Defensive tackle Marcell Dareus and former running back Karlos Williams were also suspended.
Under the NFL's new remittance policy, the Bills could be subject to a fine for having multiple suspended players in a season.
The Dallas Cowboys already face a hefty fine for having three suspended players.
- Scooby Axson