She is the eldest of five children, and one of her siblings – Jaylin Liu – has been making headlines recently, with reports about her transgender identity and participation in women’s sports. AdvertisementBut who exactly is Jaylin Liu? Jaylin Liu is transgenderJaylin Liu openly expresses her identity on social media. What sports does Jaylin Liu play? Since joining the women’s teams last year, Jaylin has been dominating the field.