Updated

Washington, DC (SportsNetwork.com) - Gavin Floyd pitched into the seventh inning, but suffered a fracture in his arm as the Atlanta Braves grabbed a 3-0 victory over the Washington Nationals to open a four-game set.

Floyd (2-2) gave up just two hits and a walk with six strikeouts to get the win, but he will be placed on the disabled list as he suffered a fracture of the olecranon in his right elbow. He gave up a foul ball to Jayson Werth on the first pitch of the seventh inning, then left the game.

"(Floyd) had command of all of his pitches," said Braves manager Fredi Gonzalez.

Chris Johnson drove in all three runs for the Braves, who were coming off a three-game sweep at the hands of the Phillies. Freddie Freeman went 3-for-5 with two runs scored.

Denard Span and Werth each hit a double for the Nationals, who have lost five of their last seven. Jordan Zimmermann (5-4) gave up two runs on seven hits over seven innings to take the loss.

The game stayed scoreless until the fourth inning when the Braves went on top. Freeman, Evan Gattis and Jason Heyward all singled with one out to load the bases for Johnson, who punched a single up the middle and just past the glove of Danny Espinosa to chase home two runs. Ryan Doumit flied out and Andrelton Simmons struck out to end the frame.

"I made some good pitches," said Zimmermann. "A couple bloopers and a three- hopper up the middle to load the bases. I was happy to get out of it with two runs and I had some good innings after that."

Washington left a man on second in the third in the sixth, while Werth doubled to start the seventh. He was left there though, as Adam LaRoche, Ryan Zimmerman and Ian Desmond all grounded out to end the frame.

In the eighth, Freeman doubled to start the frame and Gattis followed with a single. Two batters later, Johnson singled to left for a 3-0 advantage.

Jordan Walden pitched a 1-2-3 eighth inning, while Craig Kimbrel worked around a one-out walk in the ninth for his 21st save of the season.

Game Notes

Gattis has a career-high 18-game hitting streak, which is the longest in the majors. He is 29-for-74 during the run ... Atlanta was 4-for-12 with runners in scoring position and left 10 men on base ... Atlanta has won six of the seven games with Washington this season.