Prior to the 2016 Summer Olympics, these policies were changed by the IOC; athletes are no longer restricted in participating in marketing campaigns for non-sponsors, as long as they do not use the Olympics' intellectual property or imply an official association with the Games.
These policies were changed by the IOC. This was prior to the 2016 Summer Olympics. Athletes are no longer restricted in participating in marketing campaigns for non-sponsors. They do not use the Olympics' intellectual property. They do not imply an official association with the Games.