Defending juvenile champion Essential Quality (Tapit) is expected to make his next start in the Apr. 3 GII Toyota Blue Grass S. at Keeneland, according to trainer Brad Cox Tuesday. The Godolphin homebred, who is slated to post his final major work this Saturday, most recently won the GIII Southwest S. at Oaklawn Feb. 27. "The Blue Grass is what we have zeroed in on," confirmed Cox. "He's done extremely well [since the Southwest]. We breezed him last Saturday [Mar. 13], and we clocked him at a half in :48.20,...