Gymnastics superstar Simone Biles has apologized to former collegiate swimmer Riley Gaines following a heated online exchange.

Retired Olympic gymnast MyKayla Skinner has addressed her former teammate Simone Biles’ ongoing tension with Riley Gaines amid their public back-and-forth over the inclusion of transgender athletes in sports.

Riley Gaines took a dig at Olympic gymnast Simone Biles when announcing her pregnancy at the Young Women’s Leadership Summit. While unveiling her baby bump to the crowd, the former swimmer referred to her and Biles’ public spat over trans athletes in sports and said: “I think the funniest thing about this to me [is] her saying,