India, Oct. 27 -- Dak Prescott was sidelined vs the Denver Broncos on Sunday, and not because of an injury. As the Dallas Cowboys lost 44-24 in Week 8, head coach Mike McCarthy decided to sit his starting quarterback and give backup Joe Milton some late-game reps.

Milton, who joined Dallas in an offseason trade from the New England Patriots, has served as QB2 since replacing Cooper Rush. Sunday marked one of his first real chances to take the field in a regular-season game. And he didn't waste it.

On his opening drive, the rookie showed off the cannon arm that made him a draft-day intrigue, connecting with Jalen Tolbert on a 35-yard touchdown strike that cut through Denver's secondary. It was a brief but impressive glimpse of his potent...