Adrian Peterson and Toby Gerhart still not practicing

Dec 1, 2013; Minneapolis, MN, USA; Minnesota Vikings running back Adrian Peterson (28) carries the ball during the second quarter against the Chicago Bears at Mall of America Field at H.H.H. Metrodome. Mandatory Credit: Brace Hemmelgarn-USA TODAY Sports

With Adrian Peterson and Toby Gerhart still yet to practice this week, third-string RB Matt Asiata could be in line to start Sunday for the Vikings.

Peterson went down with a sprained foot in the second quarter of last week’s game in Baltimore. While an MRI showed no serious injury, the Vikings have said that he was unlikely to play this week, despite being currently listed as questionable.

According to ESPN Minnesota Vikings reporter Ben Goessling, head coach Leslie Frazier is in wait-and see mode with both RBs, so tomorrow’s team practice will be crucial in determining if either back plays. TE Jon Carlson has also yet to practice, as he has not cleared his concussion test. If none of these guys can play Sunday for the Vikings, the Matt Cassel-lead offense will be even more limited than usual.

Peterson’s backup, Gerhart, suffered a hamstring injury Sunday and is also questionable. Right now is outlook is a little more optimistic than that of AD, but with both still yet to practice, the seldom-used Asiata may get his first NFL start this week.