Deuce Vaughn caps off drive with 4-yard rushing score

Dallas Cowboys running back Deuce Vaughn rushes for a 4-yard touchdown against the Jacksonville Jaguars.

Tight end Jake Ferguson shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Head coach Mike McCarthy shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Linebacker DeMarvion Overshown shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Running back Deuce Vaughn shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Kicker Brandon Aubrey shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Tight end John Stephens shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Defensive tackle Mazi Smith shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Quarterback Will Grier shares his thoughts following a 28-23 defeat to the Jacksonville Jaguars.

Tune in to Cowboys Countdown to Kickoff, as they count down to the kickoff against the Jacksonville Jaguars.

Watch Dallas Cowboys running back Deuce Vaughn's highlights in his preseason debut against the Jacksonville Jaguars.

Watch the Dallas Cowboys' best plays in the team's preseason opener against the Jacksonville Jaguars.

Watch the highlights from the Preseason Week 1 game between the Jacksonville Jaguars and the Dallas Cowboys.

Dallas Cowboys linebacker Devin Harper scoops up a fumble by running back Snoop Conner.

Dallas Cowboys quarterback Will Grier connects with wide receiver John Stephens for a 15-yard touchdown against the Jacksonville Jaguars.

Deuce Vaughn cuts through the Jacksonville Jaguars defense for a 26-yard run.

Dallas Cowboys running back Deuce Vaughn uses the spin move against the Jacksonville Jaguars.

Dallas Cowboys quarterback Will Grier throws a 17-yard touchdown pass to wide receiver Jalen Tolbert in the final minute of the first half against the Jacksonville Jaguars.

Dallas Cowboys tight end Jake Ferguson goes up high to haul in a 26-yard pass from quarterback Cooper Rush against the Jacksonville Jaguars.

Jacksonville Jaguars punter Logan Cooke brings down and gets off a high snap on a punt, but it causes ineligible players downfield.

Dallas Cowboys safety Juanyeh Thomas gets things started early with an interception against Jacksonville Jaguars quarterback Trevor Lawrence on the second play of the game.

With the RB2 position behind Tony Pollard still up for grabs, five players will make their attempt to lock down a pivotal role in the Dallas offense.

Will Grier has stacked a few good days in training camp, and he'll look to carry that into the preseason starting on Saturday.

Head coach Mike McCarthy updates the injury status of his team as the Cowboys wrap up the practice week before returning home to host the Jacksonville Jaguars at AT&T Stadium in their first preseason game of the year.

The second season for Jalen Tolbert is one tied to a lot of optimism at the moment, as he carries his renewed South Alabama confidence into a preseason battle to become WR4.