When GIII Sanford Stakes morning-line choice Mentee (City of Light) was scratched Saturday morning, it might have been assumed the race had lost some of its luster, but apparently no one told Mo Plex (c, 2, Complexity--Mo Joy, by Uncle Mo), who was featured in TDN's Saratoga Notebook Friday. The New York-bred Jeremiah Englehart trainee went gate to wire to stay undefeated and give his freshman sire (by Maclean's Music) his first graded win. Studlydoright (Nyquist) and Three Echos (Echo Town) each suffered bumps at the break, but kicked on...