The Lia Thomas controversy.

Lia Thomas finished the race seven seconds ahead of team-mate Catherine Buroker.

Some team-mates have spoken anonymously - some in Lia's favour, others in criticism of Lia's inclusion on the team.

On the matter of transgender women's participation in women's sports, there has been criticism from Sharron Davies and Martina Navratilova.

Given what many female athletes regard as the unfairness of the situation, one would have assumed that fear of being accused of transphobia would be the least of their problems. The reluctance to speak openly is especially astonishing in the United States, whose constitution protects freedom of speech applies to all people, even including white supremacists.

So why are female athletes not boycotting prestigious sporting events?