You have to use a creation center team as well. I'm doing this now, playing as goal keeper in CM, I get sent off intentionally and each match only lasts a minute or two since you can't continue(still counts as a played game). Start new CM each time using
this method, should get the achievement quickly...
I got this achievement by doing career mode. Start a new career (you don't need to save your career), pick a team, use your virtual pro, play the first game in the season, exit out after the match (again, no need to save). Start a new career and pick a team
from a different league and repeat the process. You don't need to do International or Creation Centre teams/leagues only the leagues in career mode work just fine. Good luck.