Harvin questionable for NFC title game

EDEN PRAIRIE, Minn. -- Vikings rookie receiver/kick returner Percy Harvin missed practice Friday and is listed as questionable for Sunday's NFC Championship Game against the New Orleans Saints.

Coach Brad Childress said after practice that "it's hard for me to even handicap" whether Harvin can play Sunday.

Harvin began suffering symptoms of migraine headaches Thursday.

"They all vary in intensity and time period," Childress said.

Defensive linemen Kevin Williams and Ray Edwards returned after missing two practices with knee injuries.

Harvin spent Friday at home, Childress said.

"So we'll just have to see how he comes along," Childress said. "It's less than ideal, but he's played under the same circumstances this year."

Kevin Seifert covers the NFC North for ESPN.com.