Cook missed the Vikings' first two games after tearing the meniscus in his right knee during the third preseason contest, returning to the field for the Sept. 26 victory over the Lions. He was in the starting lineup for his regular-season debut, and he participated in practice Monday when the Vikings returned from their bye week.
Another torn meniscus likely would keep Cook off the field for a few weeks, but Childress said he anticipates the rookie will return faster from this meniscus tear than the one he suffered during the preseason.
Childress said Favre's elbow was inflamed. Favre was seen wearing a sleeve on his right arm in practice this week, and he was icing his elbow during a post-practice news conference Thursday.
"It was not an issue before we went on the bye," Childress said. "We worked pretty good on Monday and Tuesday out here. It flares up every now and again. MRI just says he has a little inflammation. You manage it."
Childress said Sullivan was improving enough that he would fly with the team to New York in hopes of his injured calf improving over the next two days.