Since version 4 Sports League is suited for every language. The default language is english.
Click the flag at the upperright corner of the window. to select your language, english or other.
By default the other language is dutch, but this can be changed to any language.
To change the second language select "Translations" from the menu and this window will open:
Each line at the right can be changed. If you like to see the empty lines only, click the checkbox at the bottom of the window.
Use the buttons "Import" and "Export" to save your translation to harddisc or open an earlier saved translation.