FILE - In this May 4, 1968, file photo, Dancer's Image, jockey Bob Ussery up, crosses the finish line to win the 94th running of the Kentucky Derby at Churchill Downs in Louisville, Ky. Sent off as the 7-2 second choice, Dancer's Image rallied from last to win by 1 1/2 lengths over Forward Pass, hidden behind Dancer's Image. 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)