Sponsored by Alex Nichols Agency 10th-CD, $79K, Msw, 3yo/up, 5 1/2fT, 5:50p.m. Brendan Walsh unveils a half to talented turf sprinter Four Wheel Drive (American Pharoah) at Churchill Downs Sunday in BORN GREAT (Scat Daddy). Four Wheel Drive opened his account with three straight victories last season, capped by a win in the GII Breeders' Cup Juvenile Turf Sprint S. The $260,000 KEENOV buy is out of stakes winner and former 'TDN Rising Star' Funfair (More Than Ready). Duplicity (Into Mischief), a $350,000 OBSMAR buy, was run down late after...