An NFL source said Travis Henry is scheduled to take a polygraph test this week regarding whether he recently smoked marijuana. The Broncos have used lie detector tests on players in the past. Henry also is willing to provide hair samples for testing in an attempt to prove his innocence. A possible defense for Henry is that his urine tested positive for low levels of THC from marijuana because he was subjected to second-hand smoke. Because the suit has been moved to federal court in New York, and Henry may appeal if not pleased with the outcome, this saga could stretch into November, potentially giving Henry another four or five games before he might serve a suspension.