text: do you think playing soccer in other leagues around the world helps a player on national duty? america's goalkeeper kasey keller plays in germany. do you think that would help him or his team be better prepeared for the world cup? like the previous answer has clarified, most of the brasilians players play outside brasil. and that is the same for argentina, ghana, and many other teams. without doubts playing outside their owns countries is beneficiary for many players included in their national teams, but it is not "that" decisive.