Add team/squad selector
With drag and drop system, it will be awsome users can create her team like this http://www.footballuser.com
Maybe an option is implementing this plugin (or similar, it's an example) https://codecanyon.net/item/soccer-action/9562644 with sportspress.
don't forget to handle ice hockey squads (starting 6/rows). i would appreciate this =) maybe just for single events, not for teams