At the sign up page the green username is the confirmed player. If there aren't any confirmed (green usernames) then Management hasn't confirmed a player and/or set the lines up yet. It's really more a question for the GM/AGM of the team in question.
Hey Uplifted - You are on the Training Camp roster right now. You may sign-up for games for the team that owns your rights, but the GM/AGM has permission to confirm the line up for a game. Because you're TC and not yet on the full-time roster, management may or may not confirm any of the games you signed up. Names in yellow are players who signed up for a game. Names in green are confirmed to play. If you download the LG app to your phone you will get a push notification when management confirms your game status.
Another upside of the app was that after confirm it also added to my calendar. Device was Android not sure it is works on iOS.