Jacksonville Jaguars wide receiver Justin Blackmon has been suspended for the first four games of the NFL season, according to multiple reports. Initially it was unknown what the suspension was for, but it has now been confirmed the suspension is for violating the NFL's "Policy and Program for Substances of Abuse".
This means his suspension is not for PED's, but rather for either recreational drugs or the abuse of over-the-counter drugs or alcohol. Blackmon had a DUI in the 2012 offseason shortly after he was drafted by the Jaguars, but did not receive a suspension or fine from the league.
This means that Justin Blackmon has previously violated the policy and is in the program, as a player is suspended for four games after the second offense. Another offense will net Blackmon a year's suspension from the NFL.
Blackmon can participate in training camp and the preseason, but will be unavailable for the first four games.