Dak Prescott Spotted at Pro Bull Riders Event with Ex Sarah Jane Ramos' Bridesmaid

Dak Prescott's recent outing with one of his ex's would-be bridesmaids has caused a stir ... but he's vigorously denied they're dating to us. Here's the deal ... on Friday night Caitlin Rance -- a friend of Dak and Sarah Jane Ramos, to whom Dak was…