Nats edge Astros behind Roark, Wieters
(MLB.com Washington Nationals)

The Astros were kept in check again Tuesday night at Minute Maid Park, where Nationals right-hander Tanner Roark held them to three runs (two earned) on six hits in 5 2/3 innings of a 4-3 win in the first game of an Interleague showdown between division leaders.