Childless Sport
$tax_query = array( array( 'taxonomy' => 'sport', 'field' => 'name', 'operator' => 'AND', 'include_children' => false, ), );
$tax_query = array( array( 'taxonomy' => 'sport', 'field' => 'name', 'operator' => 'AND', 'include_children' => false, ), );