LANDOVER, Md. - Washington Redskins coach Mike Shanahan was asked about his team's miscues Saturday.

"Which plays are you referring to?" Shanahan asked.

The inquiring reporter named a few plays, and Shanahan added a couple more.

It was that type of day for the Redskins, who lost to the Minnesota Vikings, 33-26. Washington committed eight penalties for 64 yards, lost a fumble, and threw an interception - the mistakes often coming at the most inopportune times.

Washington (5-10) has lost six straight at home, its longest such skid since 1994.

Tied at 10 at halftime, the Redskins appeared to catch a break on the first two plays of the third quarter, when running back Adrian Peterson and quarterback Christian Ponder suffered game-ending injuries for the Vikings (3-12).

Peterson took a direct hit to the left knee from Redskins safety DeJon Gomes on a 3-yard gain and was scheduled to have an MRI exam when the team returned to Minnesota on Saturday night.