Jockey Mario Gutierrez, 25, hasn't looked back since owner Paul Reddam and trainer Doug O'Neill put him on I'll Have Another before the Robert B. Lewis Stakes at Santa Anita in February. Victories in the Kentucky Derby and Preakness Stakes followed, and now Gutierrez is on the brink of Triple Crown history. (Associated Press)

Jockey Mario Gutierrez, 25, hasn't looked back since owner Paul Reddam and trainer Doug O'Neill put him on I'll Have Another before the Robert B. Lewis Stakes at Santa Anita in February. Victories in the Kentucky Derby and Preakness Stakes followed, and now Gutierrez is on the brink of Triple Crown history. (Associated Press)