1st off, you posted this in the right place. You have a card that needs to be ID'd and so this is the place to post it.
Having a little bit of experience dealing with Pokemon cards, I would say this card belongs in the main set checklist as an SP (short print) or VAR (variation). But I don't know for sure, so I won't mess with it. There are some other non-sport collectors here that are more qualified to alter the set correctly.
NO PWE's EVER!!! PLZ PM me 1st before sending any offer. ONLY selling cards as of March 2024. No trades or purchases right now.
_______________________________________________________________________
Largest total PC card collections by Team, then Athlete (as of 3/22/24):
STL Cardinals (MLB) - 8810; Carolina Panthers - 2888; GB Packers - 1790+ cards
Mark Martin (NASCAR) - 2038 cards; Jimmie Johnson (NASCAR) - 1875 cards; Jeff Gordon (NASCAR) - 1594; Ricky Rudd (NASCAR) - 839; Ozzie Smith (MLB) - 707