(San Diego, CA) — The NFL is funding a study on the use of cannabis in pain management at a California university. The University of California, San Diego is the recipient of some 500-thousand dollars in funding from the league to conduct what will be the first wide-scale clinical study on whether cannabis can reduce pain in professional athletes. UC San Diego has studied the effects of cannabis on the human body for more than 20 years. Professional rugby players will be among those participating in the study. Some athletes say they have better pain control and heal faster when using cannabis. This after a recent University of Florida study found some 90 percent of retired NFL players say they live with chronic pain from injuries sustained during their careers.