If your league uses SportsEngine Premium HQ, you are automatically added to the roster and will not have to accept an invitation.
If invited to join a team created through the app:
Check your email for an invitation from SportsEngine that says, "Invite: Join [Team Name].
If you do not receive an email, please ensure the coach has sent the invitation to the correct email address.
Within the email, click or tap Accept.
If you have an account with SportsEngine, sign in. If not, please follow the prompts to create your account and finish accepting the roster invitation.
With the SportsEngine app installed, you'll now have access to view the roster and schedule, or begin chatting with teammates.