Garrett announced Romo's injury on a conference call Saturday, two days after he was knocked out of a preseason game against the Seattle Seahawks after three plays in the first quarter.
Garrett said the injury would not cost Romo the season but could not give a timetable on a possible return. Romo had an MRI on Friday, and the results were learned later that night.
MRI shows broken bone in Tony Romo's back; Cowboys QB not ruled out yet for season opener: https://t.co/JBimgH2Upv— ESPN (@espn) August 27, 2016
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