Winners of four straight, the Washington Nationalsopened their 11-game final homestand Thursday night looking to creep closer to the idle New York Mets in the NL East. The Miami Marlins spoiled their homecoming. Washington starter Tanner Roark allowed home runs to Justin Bourand Martin Prado and the Marlins dented the Nationals' fading playoff hopes with a 6-4 win. Read more http://espn.go.com/mlb/recap?gameId=350917120