Athletes fight limits on endorsements at Tokyo Olympics

Germany's Nike Lorenz wears a rainbow emblazoned shin guard as she passes the ball during a women's field hockey match against India at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/John Minchillo)

Malaika Mihambo, of Germany celebrates after winning the gold medal in the women's long jump final at the 2020 Summer Olympics, Tuesday, Aug. 3, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Sky Brown of Britain, center, walks away after chatting with Sakura Yosozumi of Japan, left, and Misugu Okamoto of Japan, right, as they take part in a women's park skateboarding practice session at the 2020 Summer Olympics, Monday, Aug. 2, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Ali Pakdaman of Iran, left, and Max Hartung of Germany compete in the women's individual Epee round of 16 competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Chiba, Japan. ((AP Photo/Hassan Ammar)