Write a question about the following article: Coming off their win over the Titans the Redskins played on home ground for an NFC duel with the Vikings. In the 1st quarter the Redskins took the lead as QB Donovan McNabb completed a 10-yard TD pass to TE Fred Davis. The Vikings replied as RB Adrian Peterson got a 5-yard TD run. The Redskins trailed in the third quarter with RB Toby Gerhart getting a 5-yard TD run, followed by kicker Ryan Longwell nailing a 31-yard field goal. The Redskins tried to come back, but only came away with a 40 and a 42-yard field goal from kicker Graham Gano, giving them a loss.
Which player scored the last field goal of the game?