You're right, Gilmar.
National championships of European countries are often called "leagues", and that's why I used both names as optional.
And then I considered UEFA Champions League and UEFA Europe League as "competitions" (as in the original phrase), although they can also be considered/called "tournaments".
The main difference is that the former are "intra countries"/"national", while the latter are "international".
Thank you for pointing that out.
Links:
1. ("Leagues", "Premier League", "Scottish League", "Scottish Championship"):
http://www.football.co.uk/league_tables/index.shtml#r6T9LCHy...2. ("UEFA competitions"):
http://en.wikipedia.org/wiki/UEFA_competitions