Sentence:  Dominic Gatto liked to have someone at the track to represent him when one of his horses raced at Arlington Park or Belmont or Prescott Downs. Someone to relay a word to the jockey, keep a sharp eye on the trainer, distribute tips to the <WSD>backstretch</WSD> workers who were made to understand that Mr Dominic appreciated their services. 
Meaning of the word marked with <WSD> tags:  An area next to a racetrack used to stable the racehorses and house employees.