The Minnesota Vikings placed tight end Kyle Rudolph on injured reserve Monday but did not have an update on injured running back Adrian Peterson.
Rudolph has been out since sustaining a broken foot against the Dallas Cowboys on Nov. 3 but was not ready to resume practicing.
Peterson sprained his right foot during Sunday's 29-26 loss to the Baltimore Ravens. Coach Leslie Frazier did not know yet how long he will be out.
Peterson was scheduled to visit a foot specialist on Monday and have more X-rays taken.
"I'm hoping, and we all are, that he'll be able to get back on the field soon," Frazier said.
Frazier said the team's 3-9-1 record will factor into whether Peterson returns this season or not.
Quarterback Christian Ponder was cleared to practice. He has been out for a week with a concussion. However, Frazier did not name a starter for this Sunday's game against the Philadelphia Eagles. Matt Cassel started in place of Ponder against the Ravens.
Also, running back Toby Gerhart (hamstring), cornerback Xavier Rhodes (ankle), guard Brandon Fusco (knee) and tight end John Carlson (concussion) are all day-to-day, and wide receiver Greg Childs was placed on the physically unable to perform list.