FILE - In this May 4, 1968, file photo, jockey Bob Ussery sits atop Dancer's Image in the winners circle at Churchill Downs in Louisville, Ky., after winning 94th Kentucky Derby. Holding the bridle is trainer Louis C. Cavalaris, Jr., center right, and owner Peter Fuller. At left is Fuller's wife and children. Sent off as the 7-2 second choice, Dancer's Image rallied from last to win by 1 1/2 lengths over Forward Pass. The result was declared official, but Dancer‚Äôs Image was later disqualified after traces of phenylbutazone, known as bute, were found in Dancer's Image's post-race urinalysis. Dancer's Image was placed 14th and last; Forward Pass was declared the winner.(AP Photo/File)