Washington Redskins quarterback Donovan McNabb leaves the field after the Redskins defeated the Dallas Cowboys 13-7 at FedEx Field in Landover, Maryland on September 12, 2010.  UPI/Kevin Dietsch

Photo by: KEVIN DIETSCH

Washington Redskins quarterback Donovan McNabb leaves the field after the Redskins defeated the Dallas Cowboys 13-7 at FedEx Field in Landover, Maryland on September 12, 2010. UPI/Kevin Dietsch