Being an athlete you will take time in practice and sometimes they will attempt in accident an surgery before they under go in final stage. Their practice is not an easy and they always check thier physical vital if they are physical fit to perform in the stage. In Olympic game is not just a simple game to execute in the stage a lot of athlete that our opponent that came from  different countries an we can socialize them all an we can not assure if were be the luckiest winner can perform and compete the other opponent.