Not if it's for his personal use and just a teaching tool . no money exchanges hands no 107 needed
Money does not have to change hands in order for it to be considered commercial usage. If the video helps a commercial entity or business in any way then it is covered by Part 107. In this case it is a bit on the edge. If this football club is a non-profit and the video is being used only internally for teaching then it may just be OK without Part 107. However, if the club were to use the video on their website or show it to prospective players then you cross over to commercial since you are using the video to drive business.
Even using it as a teaching tool would fall under Part 107 if the players are paying the club to play there. In that case the video is helping the club achieve a commercial goal (the players are paying to be there so it is commercial).