Winfield's status for Sunday up in air

EDEN PRAIRIE, Minn. -- Minnesota Vikings Pro Bowl cornerback Antoine Winfield did not practice on Wednesday because of a sprained right foot.

Coach Brad Childress says Winfield will be evaluated throughout the week before a decision is made on his availability for the game Sunday at Pittsburgh. Winfield was injured in the second quarter against Baltimore, and the Vikings defense struggled mightily without him.

Running back Adrian Peterson was limited in practice by an ankle injury. Percy Harvin was limited with a sore shoulder, as was safety Madieu Williams with sore quadriceps.

Tackle Phil Loadholt continues to be limited in practice with an ankle injury, but he says he feels good enough to play.