Zulu Kingdom (Ire) (Ten Sovereigns {Ire}), a perfect three-for-three this term, headed by a win in the GI American Turf S. at Churchill Downs, will be heavily favored in Friday's GII National Museum of Racing Hall of Fame S., a one-mile inner turf test for sophomores at Saratoga. A winner of six-of-seven career starts, the lone blemish on Zulu Kingdom's resume is a seventh-place finish in the GI Breeders' Cup Juvenile Turf at Del Mar. The 6-5 morning-line favorite, campaigned in partnership by Madaket Stables LLC, Michael Dubb, William Strauss...