The 143rd Running Of The Kentucky Derby [Getty Images]

Jockey John Velazquez rides Always Dreaming after winning the 143rd running of the Kentucky Derby at Churchill Downs in Louisville, Kentucky, U.S., on Saturday, May 6, 2017. The 143rd running of the Kentucky Derby will feature a field of twenty horses with the winner receiving a gold trophy plus an estimated $1.24 million payday. Photographer: Luke Sharrett/Bloomberg via Getty Images

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