@Tori
Indeed, after thinking about it a bit, I realized an "description-enforcing"(sorry for this) nature in it. Once again from tsubasa for example
友情などを再確認しながら、
サッカーそのものの魅力に触れます。
Am I ridiculously mistaken or is it very unlikely() that そのもの will follow the 主語, while 自身 has a more comfortable position for this?