Denver Broncos outside linebacker Von Miller attempted to use the help of a urine collector to avoid a positive drug test, according to an ESPN report.

That helps explain why Miller is currently serving a six-game suspension rather than the standard four-game suspension for violating the league's substance abuse policy.

Sources said Miller faced a suspension of up to a year after the NFL, the NFL Players Association and Miller's representatives became aware that he had worked with a collector in an attempt to avoid a positive test.