Frank Ragnow did not take part in individual drills Friday for the second straight practice, but the Detroit Lions are holding out hope they'll have their starting center for Sunday's game against the Jacksonville Jaguars.
The Lions listed Ragnow and special teams ace C.J. Moore as questionable for Sunday, and ruled out cornerback Desmond Trufant with a hamstring injury.
Ragnow suffered a groin injury in practice Wednesday. He did not practice Thursday and was listed as a limited participant Friday.
If he cannot play, the Lions are expected to activate Joe Dahl from injured reserve and give him the start at center.