It looks as if Corey Nakatani has become the 1st string rider for Steve Asmussen at least for this weekend at Oaklawn, I would imagine if he does well with Nehro in the Arkansas Derby, he may earn the mount in the Ky. Derby. He's 2 for 2 at Santa Anita, with Asmussen according to Bris. He'll have 10 or more chances to prove himself Thur-Sat.