Also for training purposes technology is helping players and coaches, and subsequently letting players to perform better in competitive matches. For example the 'mi coach' chip allows coaches to analyse player performances, how much distance they covered, how many sprints made, in order to make appropriate changes to the player and team. choaches won't rely completely on the chips, but they act as a 'second eye' for a more accurate analysis.
https://www.youtube.com/watch?v=BqIvkyxvLLo
https://www.youtube.com/watch?v=9ZSHHw8oq40