Uncle Sigh is actually named after a star from Duck Dynasty. America's Best Racing writes: Uncle Sigh is named for Uncle Si Robertson from A&E’s hit reality TV show Duck Dynasty. Wounded Warrior Stable pledged to donate 10-percent of his earnings to various charities supporting injured veterans. Irad Ortiz Jr. is the jockey for Uncle Sigh and Gary Contessa is the trainer. According to the Kentucky Derby Contessa feels his specialty is this: He describes his training niche as someone who can pick a winning horse that owner's can afford.