For the first time in 13 years, the Dallas Cowboys are entering the NFL off-season workouts without Tony Romo as their starting quarterback. Dak Prescott is at the workouts as he prepares to start his first season as the sole starting quarterback for the Cowboys and this is where he will work on proving that this is his team now. Here is a look at what is lined up for the Cowboys as off-season workouts begin for the Cowboys.

The Dak Prescott-era begins in Dallas

Last year, the Dallas Cowboys drafted Dak Prescott with the intents on him serving as a reliable backup quarterback for the team. However, an injury took out Tony Romo and Dak Prescott started the entire season for the Cowboys.

He played well enough to earn Rookie of the Year honors. Prescott completed 67.8-percent of his passes for 3,667 yards, with 23 touchdowns and only four interceptions.

It was an amazing season for the rookie and the only way he can match his success is by working in the off-season workouts to continue building chemistry with his teammates, including second-year running back Ezekiel Elliott, who was the runner-up in the Rookie of the Year voting. This also gives Prescott a chance to go through the entire off-season workouts with Dez Bryant, Terrance Williams, and Jason Witten to work on repeating the team's success in 2017.

The Dallas Cowboys off-season workout schedule

Monday, Dak Prescott and the Dallas Cowboys started their 2017 off-season workouts. They are working out at The Star in Frisco, Texas, which is also where team captains have held unofficial workouts for much of the last month.

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The only difference between those workouts and the ones starting today is that these are official and the strength and conditioning team will finally be on hand for the workouts and rehab work. That will last for two weeks.

After that, there will be a three week period where players will interact with Cowboys' coaches for the first time and there will be teaching sessions on the field. However, the offense and defense can't both work out on the field at the same time against each other. This is where Dak Prescott will get a chance to work on plays for next season and develop even better timing with his receivers.

On May 23, the third session will start and there will be three weeks of organized team activities and 10 practices. All of these off-season workouts are voluntary, so the Dallas Cowboys will have a chance to see who is really dedicated to getting better and who will just wait until the mandatory June minicamp to show up.