Sheffield (hamstring) will remain sidelined for Sunday's matchup with the Jaguars, Tori McElhaney of the Falcons' official website reports.
Sheffield was activated off the Falcons' injured reserve on Oct. 9. However, he has yet to make his season debut. He was unable to practice all week, so the news is unsurprising. His next chance to debut will come in Week 13 versus the Bucs.