D-backs impose on Nationals with three!

Jake Lamb and Chris Herrmann homered to Tanner Roark, and the Arizona Diamondbacks trailed to beat the Washington Nationals 6-3 on Tuesday.

Opener Taijuan Walker and four relievers combined to launder Washington’s powerful lineup in the last six innings, after the Nationals took the lead 3-1.

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Two days after scoring 23 runs with the Mets to crown a month in which he set a record, Washington went 12-2 with runners in scoring position and left 10 runners stranded on the trails.

Lamb and Herrmann fired their homers in the fourth inning to give Arizona a 4-3 lead. Jeremy Hazelbaker added a solo homer in the ninth.

T.J. McFarland (1-0) took four outs in a row, J.J. Hoover and Mexican Jorge de la Rosa solved an episode each, while the Dominican Fernando Rodney gave immaculate process to the ninth to credit his seventh rescue.

Roark (3-1) had eight strikeouts in six innings in Washington.

For the Diamondbacks, the Cuban Yasmany Tomás of 3-0.

For the Nationals, the Venezuelan Jose Lobatón of 4-0. Rafael Bautista of 1-0.