The Saints placed Poole (undisclosed) on injured reserve Tuesday, Katherine Terrell of The Athletic reports.
Poole was seen limping and visiting the medical tent during Monday's preseason contest against the Jaguars, but no injury was reported. He appeared in nine games last year with the Jets before undergoing a season-ending shoulder surgery. With the Florida product sidelined, KeiVarae Russell and Natrell Jamerson will compete for the backup spot behind Ken Crawley.