Using entity reference field as filter in view
Follow the following steps.

1) First create an entity reference field in your content type (player) and in the Entity Selection Mode
select (Simple(with optional filter by bundle) and then check Tournement checkbox, And in Additional Behaviors check (Render Views filters as select list) and save your content type.

2) Create view of type Players

3) Add new filter and choose your reference field and apply

4) Check (Expose this filter to visitors , to allow them to change it) checkbox.

6) Select Operator (Is one of) and in options check (Select all) checkbox

7) Click on Apply button and save your view.

That's all, now you are ready to filter the view using your reference field.