Critics of the tattered turf on FedEx Field came out in force after the injury of Redskin's quarterback Robert Griffin III and Seahawks star defensive end Chris Clemons during Sunday's NFC playoff contest in Washington. FedEx Field is Bermuda grass, which goes dormant and turns brown in cold weather, according to former golf course superintendent John McShane who now represents synthetic turf maker FieldTurf. "You rip up clumps of it and whatnot its not going to regenerate," McShane said. "It doesn't matter what kind of budget you have to maintain it." Bermuda turf fields are popular in hot southern climates. Sky 9 flew over FedEx Field on Tuesday morning as a machine rolled over the turf.