Now it's official. To Tony Romo, being the quarterback for the Dallas Cowboys is now a thing in the past. He will be welcoming a new career as a broadcaster.

On Tuesday, the Dallas Cowboys have officially released their star quarterback Tony Romo, according to a report from ESPN. Tony Romo's release meant that he's now officially retired from the NFL and is set for a new career in broadcasting as he signs with CBS to be the NFL lead analyst.

According to Tony Romo, leaving the NFL was a very hard decision for him to make. Tony Romo also said that he's thought about whether to walk away from football or to return for another year a number of times. Ultimately, the decision to walk away weigh far greater than to return for another season.

Before retiring, Tony Romo had a lot of interest from other NFL teams as he became expendable after the emergence of Dak Prescott as the starting quarterback for the Dallas Cowboys. One of those teams is the Houston Texans, which Tony Romo considers as the top NFL team on his wish list.

But several factors ultimately changed Tony Romo's mind in returning for another season. Health is one factor but the CBS offer to be an NFL analyst was the clincher and was too good to pass up for Tony Romo.

"It really had nothing to do with the Texans and everything to do with CBS," Tony Romo said. "I felt like it was the right decision. My wife would tell you we've had a lot of late nights. It was nice to have some clarity."

Tony Romo, 36, was limited to just five games in the past two years. Dak Prescott replaced Tony Romo as the starting quarterback for the Dallas Cowboys.

Tony Romo will replace Phil Simms at CBS and will be joining Jim Nantz. Aside from CBS, Tony Romo also has drawn interest from Fox and NBC, as the Bleacher Report reports.