Dallas Cowboys quarterback Dak Prescott and his ex-fiancée, Sarah Jane Ramos, have called off their wedding. The former couple's split has led to conflicting accounts of what went wrong as rumors that the NFL star cheated have started to swirl. It's been reported that Prescott and Ramos sent out an email informing guests of the cancellation. Us Weekly has reached out to Prescott and Ramos' reps for comment.