Every child has the right to play. Sports, therefore, play a valuable role in children’s development and growth. Starting from Article 31 of the UN Convention on the Rights of the Child, numerous other international, supranational, and national legal sources define children’s right to play sports with the purpose of developing their whole personality. Indeed, sports allow children to engage in the exercise necessary for correct psychophysical development; improve children’s social inclusion, and aim to offer equal opportunities to all children in promoting their social life. The right to engage in play and recreational activities is an important right of every child, which must be exercised taking into account the right to health, as well as the possibility to rest and the choice “not to become a champion at all costs,” likewise other important children’s rights that will be analysed in the paper. It will also reflect on the moment when recreational sports turn into competitive sports, where competitive dynamics make the appreciation of the protection of children’s rights much more complex. Considering the central role played by parents and trainers in ensuring that children practice sports in a manner most appropriate to their balanced psycho-physical development, the best interests of child will be considered in relation to the abovementioned demanding dynamics of competitive sport. The aim of this paper is to investigate whether fundamental rights are respected in sports activities involving children, trying to raise awareness of the position of minor athletes in the world of sports since they are particularly vulnerable and in need of protection.