(Toni L. Sandys/The Washington Post)

Ever since he allowed four unearned runs to the Cubs on May 11, Stephen Strasburg (3-6, 2.50 ERA) has a 1.50 ERA in five starts and has struck out 26 batters over 30 innings. He has, however, only a 2-1 record as the Nationals meager offense has spoiled his starts. He faces Tyler Chatwood (4-1, 2.33 ERA) on Friday. The Nationals, winners of two straight, haven’t won three games in a row since a five-game winning streak from May 4-10. The lineups are here. As always, discuss the game here.