And while MLS has maintained just eight international roster spots per team , the green card process has allowed teams to field more than that allotment .
As MLS has matured and expanded , so too has the league 's international scouting network .
While MLS has maintained just eight international roster spots per team , the green card process has allowed teams to field more than that allotment .
As MLS has matured and expanded , so too has the league 's international scouting network .