In this continuing series, we take a look ahead at US-bred and/or conceived runners entered for the upcoming weekend at the tracks on the Japan Racing Association circuit, with a focus on pedigree and/or performance in the sales ring. Here are the horses of interest for Sunday running at Chukyo Racecourse, including the return of last-out Group 3 winner Shivaji (First Samurai). Over at Tokyo, a field of 17 is set for the world's richest Derby, the G1 Tokyo Yushun, headed by the undefeated Efforia (Jpn) (Epiphaneia {Jpn}): Sunday, May...