Harvin missed his second consecutive practice Friday because of migraine headaches, a problem he has dealt with for most of his life and that cost him one game this season. He has been invaluable to the Vikings as a wide receiver, kickoff returner and even occasionally as a runner out of the backfield on plays designed for him.
"I have no idea what's going to happen," Vikings quarterback Brett Favre said of Harvin, his trusty third-down target. "We hope he plays, but we have to prepare as we've been doing, like Percy's playing."
Better news for the Vikings was the return to practice of starting defensive linemen Ray Edwards and Kevin Williams. They're each listed as questionable because of knee injuries that kept them out of practice the previous two days. Edwards wore a brace on his right knee. Childress said Edwards and Williams both moved around "OK" during drills.
"We'll see how they bounce back (Saturday)," Childress said. "That's always the litmus test."
Linebacker Chad Greenway expressed no concern about Edwards and Williams being less than full strength.
"If they're out there, they're going to be flying around, playing at 100 percent," Greenway said. "Obviously, we're optimistic that they're going to be 100 percent and ready to go."
Williams didn't participate at all in practice. Sapp, Edwards and cornerback Antoine Winfield were limited. Winfield is listed as probable, still feeling some effect of the broken right foot that he suffered in October.
Also, linebacker E.J. Henderson, who was lost for the season when he broke his leg last month, will accompany the team to New Orleans, according to Greenway.
"It's just nice to have him around," Greenway said. "You forgot how good he played for 12 weeks of the season."
Copyright 2010 by The Associated Press