Bannan, 31, could be an inexpensive option to replace nose tackle Kelly Gregg, who is 34 years old and registered a career-low 38 tackles this past year. Bannan, however, said he would not want to be the one to push Gregg into the sunset."Kelly's like my brother," Bannan said. "If he's able to go another year, he's going to go another year. It shouldn't come down to whether Kelly is going to stay or go. I've played with Kelly and [defensive tackle] Haloti Ngata at the same time, so who knows? I really don't know what's going to happen at this point. I just don't know. Everything's in limbo, and it's a tough deal."