WASHINGTON — Hit by a pitch two innings after homering, Bryce Harper jawed and pointed at Atlanta's Julio Teheran, and the dugouts and bullpens emptied, but the only haymakers thrown during the NL East-leading Braves' 2-1 victory over the Nationals on Tuesday night came from the teams' Twitter feeds. All in all, it was the sort of stuff rivalries and high-drama playoff chases are made of. Except, in this particular case, Evan Gattis' two-run single in the fifth inning and the six innings thrown by Teheran (9-5) while allowing one run combined to produce Atlanta's season-high 12th consecutive win, padding their NL East lead to 14½ games over Washington.