No Club may unreasonably refuse to permit a player to endorse a product. Notwithstanding the foregoing, and without affecting interpretation of the preceding sentence, no player will be permitted to be a party to any endorsement arrangement of any kind with a company associated with the production, manufacture, or distribution of a substance that has been banned by the Policy on Performance-Enhancing Substances (formerly known as the Policy on Anabolic Steroids and Related Substances). The NFL and the NFLPA will agree each year on a list of such companies.
The placement of a sponsor’s logo on a jersey does not constitute endorsement by any player of that sponsor. Players shall not challenge or refuse to wear jerseys with sponsor logos.