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Jordan Zimmermann beat the Tigers to earn his NL-leading sixth win.
"Oh man, it's incredible," LaRoche said. "When you've got the other team coming down talking about how nasty he is and how they've all been keeping up and know how good of a pitcher he his, it's a pretty good sign."
It's also a fairly good sign when that pitcher shuts down three of the sport's most fearsome lineups in succession, capped by this dismantling of the Tigers during a 3-1 victory that was as impressive as any the Nationals have strung together so far this season.
"I don't think he's scared of anybody," LaRoche said. "I don't think he cares who's hitting. He's pounding the zone and working ahead, sticking with his plan. It continues to pay off."