Cathryn Sophia erases doubts about stamina with Kentucky Oaks win

Songbird didn't race in Friday's Kentucky Oaks but she still affected the outcome.

The connections of Cathryn Sophia wouldn't have run her in the race if Songbird had entered.

There were concerns that the filly didn't have the distance in her for the 1 1/8-mile race. But Cathryn Sophia erased all...