The NFL and NFL Players Association have agreed to add synthetic marijuana to the list of banned drugs and steroids.
Synthetic marijuana is sometimes also sold under the name of Spice, K2 and Blaze.
Players will be tested for synthetic marijuana and those who record more than 2.5 ng/ML of synthetic cannabinoids will be deemed in violation of the NFL's policy and could face discipline.
Chandler Jones is among football players that have taken synthetic marijuana and experienced strange behavior after the use. After taking the drug, he reported to a Massachusetts police station and sought help for a bad reaction and was taken to the hospital. He is now a member of the Arizona Cardinals.