As the great wordsmith DJ Khaled would say....another one!
The basic set up is...
5 groups have been set up, with each group consisting of 5 national teams. Each drafter will be randomly assigned 2 nations from each group = 10 overall. Each drafter then has to pick 1 player from each of these nations in whichever order they wish, as long as you use each nation.
The 11th player to complete your team can then be taken from any of the remaining 15 nations that you have not used.