St Elias Stable's Captain Cook (Practical Joke), a heartbreaking second at 20-1 in the GI H. Allen Jerkens Memorial S. at Saratoga Aug. 23, will be favored to register a first career graded success in Saturday's GIII Perryville S. at Keeneland. Winner of the Withers S. in February, the 'TDN Rising Star, presented by Hagyard' was making his first start for Todd Pletcher in the Allen Jerkens. The field of six for the Perryville also includes GII San Vicente S. winner and Allen Jerkens third Barnes (Into Mischief) and GIII...