While I have not used music prior to or during exercising/sports competitions, I use music as a mood regulator and morale/energy booster during work from time to time – especially when I am stressed, tired or feeling moody. Music is generally effective in changing my mood and boosting my energy levels.
There are plenty of football-related videos on YouTube – I find those on skills and goals by top players (paired with upbeat music/soundtrack) particularly energising.