ORCHARD PARK, N.Y. -- Buffalo Bills offensive tackle Seantrel Henderson is facing a four-game NFL suspension for violating the league's substance-abuse policy, a source told ESPN NFL Insider Adam Schefter.
The positive test was apparently caused by a treatment for Crohn's disease, which NFL Network reported Wednesday was marijuana. The suspension is under appeal, a source told Schefter.
Henderson, 24, tested positive for marijuana at the NFL combine in 2014, a source told Schefter. He also was suspended while playing at the University of Miami for failed drug tests. Henderson's history with substance abuse caused some teams to remove him from their draft boards.