What happened: The questionable tag follows Burrow saying back tightness would not keep him out Sunday at Houston. He threw Thursday after the back issue became a midweek concern.
Why it matters: Sunday is Week 2, with Cincinnati on the road. Houston ruled out Nico Collins, leaving both sides managing key absences.
By the numbers: Collins had 7 catches for 75 yards and a touchdown in the opener.
What to watch: Kickoff Sunday will settle the starting quarterback decision.