Thank you for your interest in coaching during the 2026 Cardinals Nike RBI season! We’re excited to have you join us in providing teens with a competitive and supportive baseball and softball experience.

To complete your registration, please follow these steps:

Registration Instructions

1. Click Register to begin the sign-up process.
2. Select your role: Head Coach or Assistant Coach.
3. Sign in or create an account at MLB.com when prompted. You’ll then return to the LeagueApps registration page.
4. Create or update your LeagueApps profile.
5. Complete all required questions in the Details section and click Next.
6. Review and accept all Cardinals Nike RBI waiver requirements.
7. Confirm your registration summary and click Complete.

Next Steps

• You will receive two emails:
  • A registration confirmation
  • A background check email (do not need to complete if you’ve already completed one for Redbird Rookies in 2026).
• Complete the background check as instructed.
• Finish the 2026 Abuse Awareness Training for Adults (instructions included in your confirmation email).
• Upload your completion certificate to your LeagueApps profile if not previously submitted.

Questions?

Email us at rbi@cardinals.com or call 314-345-9883