Hi Frank, I think your user story is well structured and understandable. A few comments and questions:
How do you ensure that the dropdown includes the correct teams and seasons? I can't understand where you get the data from.
Is all data required when submitting the form data? Maybe you can add this point as a task or/and as an acceptance criteria.
When submitting the data, is it expected to see the new player in the list page? Or is this part of another US? I'm asking because of the image you provided. If so, make sure to add the acceptance criteria that the submitted player is correctly displayed. I don't understand why you write 'the updated list with 4 players is visible'. Why exactly 4 players?
Value Proposition
As a user I want to add Bundesliga players from season 2021 or 2022 to my player list So that I can expand the list of players, that interest me
Description
Acceptance Criteria
Tasks