PHOENIX — Bryce Harper homered and drove in two runs, Tanner Roark struck out a season-high 11 and Sean Doolittle stranded the potential tying run to preserve the Washington Nationals’ 4-3 win over the Arizona Diamondbacks on Saturday night.
Roark (8-6) gave up two runs and three hits in seven innings for the NL East-leading Nationals.
Harper hit his 25th home run of the season on a full-count changeup from Anthony Banda (0-1), who lost in his major league debut.
Chris Iannetta hit a two-out RBI double in the bottom half, but the Nationals opened a 4-1 lead with a three-run sixth.