This is a very simple visualisation to know the nationality of the players in the 16 teams on the current stage of the champions League, there is no names, i only wanted to show the origin of the players aligned by the position on the field. each color is a nationality, and ther is a yellowish gray for the category "other countries."
Is in arabic so: Black is for Spain, gray for Germany, cyan for France, Yellow for Brazil, red for England, light green for Portugal, dark green for Italy, light cyan for Argenina, Light yellow for Ukraine, Purple for Switzerland and Orange for The Netherlands

Some players have a circle around, it means,  the matches played during this edition of the cup