sports_league-8.x-1.x-dev/modules/sl_standings/sl_standings.links.task.yml

entity.sl_standings_rosters.collection:
  title: 'Standing rosters'
  route_name: entity.sl_standings_rosters.collection
  base_route: sl_admin_ui.content
  parent_id:  sl_admin_ui.content
  weight: 1