McNabb made a brief appearance on the practice field Thursday afternoon but didn’t take part in any drills. He fractured his rib on a touchdown run late in the Eagles’ 38-10 victory over the Carolina Panthers last weekend…

“Donovan is working very hard,” Eagles offensive coordinator Marty Mornhinweg said. “You know Donovan, he’s doing everything in his power to get back out there  make it to this game. He’s played with a broken ankle, a broken sternum and all these things. Donovan is a very tough man..”

If McNabb isn’t available, the Eagles will go with Kevin Kolb, Philadelphia’s second-round draft pick in 2007. Kolb would make his first NFL start ahead of veteran Jeff Garcia, who signed with the Eagles on Tuesday as an emergency backup.

Kolb took nearly all the repetitions with the Eagles’ first team Thursday. Garcia and Michael Vick, who is on the active roster but still must serve one more week of his league-mandated suspension  split the remaining snaps and worked with the scout team..