The International Olympic Committee is responding to an organized campaign by a number of athletes who are upset about rules involving personal sponsorships and marketing in place during the London Games.
Several athletes, including American track star Sanya Richards-Ross, posted nearly simultaneous tweets on Sunday saying they demand change of the IOC's Rule 40.
That's the rule barring those in the Olympics from using their names or likeness for advertising purposes during the Olympics.
IOC spokesman Mark Adams says the governing body is ''trying to protect the money that comes into the Olympics movement.''
Richards-Ross says she finds it ''unjust'' that athletes are being restricted.