Over the years, Olympic athletes grow close with one another, and the same is true for Olympians Simone Biles and MyKayla Skinner. As gymnastics watchers know, Biles pulled out of the vault finals — and a few other individual events — at the last minute to focus on her mental health. This was a much-publicized move because it marked one of the first times that an Olympic athlete pulled out of an event over a non-physical injury, per PopSugar. But this pulling out gave an opportunity for Skinner to fill in for her and to provide her with one last opportunity to earn a medal both for herself and for Team USA. Skinner, who was selected as an individual alternate and not a member of Team USA, was looking to retire after this Olympics.