Ex-Cowboys quarterback Tony Romo is the newest member of the Dallas Mavericks -- for a day anyway.

After retiring from the NFL and joining CBS as our lead game analyst, Romo quickly inked a (pretend) contract with the Mavericks. So, he's in full uniform for the team's home game against the Nuggets on Tuesday, but he won't play in the game, which means the only chance to watch him ball came during pregame warmups. 

Dirk Nowitzki was ready:

So were the fans, who led a "Tony" chant.

Ezekiel Elliott even showed up.

And when the time came for Romo to put up some shots, he actually looked like he belonged (just like he did in shootaround). Romo, who played basketball in high school, didn't appear to be rusty from his years spent throwing touchdowns in the NFL.

Step 1: Making a layup.

Step 2: Showing off his handles.

Step 3: Making an open jumper.

His foot was on the line. So, for the record, that's not a 3-pointer.

Step 4: Beating a defender off the dribble.

Step 5: Having your name shouted by the PA announcer.

After warmups, Nowitzki and Romo addressed the crowd. Somewhat awkward: In the background, you could see the Nuggets ready to play while the celebration at half court continued. So, when Romo grabbed the mic, he opened with a joke.

"We're going to make the Nuggets wait another 10 minutes," Romo said. "Sorry, guys."

"This is an honor that I could never dream of," Romo continued. "It's a little embarrassing. But I tell you what: I'm a very lucky guy."