There are a total of 11 cups to win, you can track your progress by going to the Gallery on the main menu and then "Trophies" this will show you which cups/leagues & UFEA trophies you still need to win.
If like me you won all the cups associated with achievements first, then now you will have to win the 5 extra cups of which are: English, French, Italian, Spanish & Netherlands Cup, each one of these extra cups has the same shortest win route as below:
Shortest route to win the extra cups:
Number of teams - 16
Competition format - Knockout System
Home & Away - No
Total Games - 20 (4 games per cup)
Total games for this achievement - 45 (If you win every cup on your first try).
Breakdown - International 7 + European 6 + African 3 + American 3 + Asia/Oceanian 3 + Konami 3 + 5 Extra cups 20 = 45 Games