Derby horses gathered to take the track for morning exercises  at Churchill Downs  on Thursday May 3, 2012 in Louisville, Ky. Photo by Mark Cornelison | Staff
Derby horses gathered to take the track for morning exercises at Churchill Downs on Thursday May 3, 2012 in Louisville, Ky. Photo by Mark Cornelison | Staff Herald-Leader
Derby horses gathered to take the track for morning exercises at Churchill Downs on Thursday May 3, 2012 in Louisville, Ky. Photo by Mark Cornelison | Staff Herald-Leader

Union Rags has look of a champion but has to prove it

May 03, 2012 07:37 PM

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