Is there a need to increase the number of substitutions in modern professional football

摘要: Football is the most important and popular sport in world, being influenced by several aspects generating a billion dollar financial income. The constant scientific advancement of modality allows rapid evolution football, to constantly review its dynamics and, consequently, laws. aim this work analyze argue, based on aspects, e.g., modality, physiological incidence injuries, relationship with media economic etc., if there need increase substitutions modern professional football matches. In order achieve objective, wide bibliographic research was used.. As demonstrated throughout text, according changes that have occurred various related over years, for regulations meet provide greater modality. way, we believe number can be very beneficial general, mainly make more dynamic attractive spectators.