Does the scarcity bonus apply to my Rivals League scores?

No, scarcity bonuses do not apply to your Rivals Leagues scores. If you use a Pro card in your lineup, it won’t get you any additional bonus points and your final score will be your Player Score.

The only bonus that applies to your lineup is your Captain pick which gets a 20% bonus to their score and your tactic choice which can get you additional bonus points (more information about tactics here).

Note that this only applies to Rivals Leagues score calculation. If you use a Pro card in your lineup and also enter your lineup into a Rivals Arena match, you will receive a Scarcity Bonus for your Rivals Arena Score as normal. This means Rivals Leagues and Rivals Arena scores might differ when using Pro cards.