CREATE TABLE table_name_91 (school_club_team VARCHAR, nationality VARCHAR, player VARCHAR)

What is the School/Club Team with a nationality of United States for Arron Afflalo?
SELECT school_club_team FROM table_name_91 WHERE nationality = "united states" AND player = "arron afflalo"
SELECT "school_club_team" FROM "table_name_91" WHERE "arron afflalo" = "player" AND "nationality" = "united states"