A transgender swimmer's team-mates have demanded she be banned from competitions over concerns that she will smash all their records.
Lia Thomas' team-mates want her banned from the upcoming NCAA swimming championships and have sent a letter to plead their case to US college sport bosses.
The letter, sent by Olympian Nancy Hogshead-Makar, is supported by 16 swimmers who have voiced their concerns over the advantage they claim Thomas has over them.