The Miami Marlins will go for their first series sweep of the season when they visit the Washington Nationals on Sunday afternoon. For the second consecutive game in the set, the Marlins fended off a late rally Saturday, holding on for 4-3 win after the Nationals scored twice in the ninth inning and left the bases loaded. Miami will look for its first three-game winning streak since April 20-22. The Marlins haven’t swept a series this season but did take three of four games in their season-opening set against the Pittsburgh Pirates.