id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	tournament	ref	PRIMARY,team_season_id	team_season_id	4	const	16	Using index; Using temporary; Using filesort
1	SIMPLE	tournament_team_player	ref	tournament_team_player-unique,tournament_team_player-tournament_id,tournament_team_player-team_id	tournament_team_player-tournament_id	4	bsr.tournament.tournament_id	48	Using where