DENVER (AP) — The Colorado Rockies showed plenty of power early. Their bullpen couldn't make it stand up.
Nolan Arenado and Corey Dickerson homered to give Colorado a quick lead but Washington rallied late to beat the Rockies, 7-4, on Tuesday night.
DJ LeMahieu had three hits for Colorado, which lost its seventh straight and remain tied with Texas for the worst record in the majors.
"We had a nice game early," manager Walt Weiss said. "We didn't put the game away. We need to play a complete game to win."
Adam LaRoche hit a tiebreaking home run in the seventh and Anthony Rendon had three hits for Washington. It was the Nationals fourth straight win and increased their NL East Division lead to two games over Atlanta, which lost to Miami on Tuesday.
The loss was just one setback for the Rockies on Tuesday. Before the game the Rockies placed shortstop Troy Tulowitzki on the 15-day disabled list with a left hip flexor strain and recalled left-hander Yohan Flande.
Tulowitzki is the third Colorado player in two days to hit the disabled list. First baseman Justin Morneau (neck) and reliever Boone Logan (diverticulitis) were put on the DL on Monday, adding to the long list of Rockies out of action.
Tulowitzki said his leg injury is an aftereffect of the torn quadriceps tendon he suffered in 2008.
"That '08 injury really put me behind the eight-ball because when you completely tear a muscle, it never gets the same again," he said. "All the other muscles have to help support. I knew it was going to be a long road back from that injury. I didn't know to the extent but here we are six years later and it's still giving me issues."
Even with the major league's leading hitter on the shelf Colorado was in a position to win.
The Rockies took a 1-0 lead in the second on LeMahieu's RBI triple to right. Arenado made it 3-0 in the second with a two-run homer to center. It was his seventh of the season and first since May 5.