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LM Otero, Associated Press
Former Dallas Cowboys quarterback Tony Romo, left, plays with his son, Rivers Romo, after a Dallas Mavericks morning NBA basketball shoot around in Dallas, Tuesday, April 11, 2017. Romo will be a Maverick for day and ride the bench when the team plays the Denver Nuggets in a home finale featuring two teams that failed to make the playoffs this year.

DALLAS — Tony Romo couldn't say no when Dirk Nowitzki asked the retiring Dallas Cowboys quarterback to join the Mavericks as an honorary teammate for a day.

Now it's turned into a scene, with dozens of media members showing up for a morning shootaround Tuesday before a meaningless final Dallas home against Denver, with both teams eliminated from the playoffs.

Romo said he felt "a little embarrassed" over the reaction of the past week to news that he was leaving the Cowboys and joining CBS as the No. 1 NFL analyst.

But he said it was a "no-brainer" to accept the offer of a tribute from Nowitzki and Mavericks coach Rick Carlisle. He will be in uniform in his football No. 9. Carlisle said Monday that Romo wouldn't play.