"He looks like he's been here for a while. His mound presence is really good." -- Braves manager Bobby Cox, on his starter, Tommy Hanson, August 11, 2009.

THE RESULT: He won't turn 23 years old for 14 more days, but Atlanta rookie Tommy Hanson has been pitching like a veteran since he was called up on June 7.

Tuesday night, he added another gem to his resume, striking out nine in six and two-thirds innings, limiting the Washington Nationals to one earned run on seven hits and no walks in a 8-1 victory before just 19,273 at Turner Field.

The loss snaps Washington's eight-game winning streak.

Hanson, a 22nd round draft pick in the 2005 draft, bolsters his record to 7-2 with a 3.05 ERA in 12 starts this season.

The Nats starter, John Lannan, did not fare anywhere near as well. Lannan (L, 8-9, 3.58) bore the brunt of Atlanta's attack, giving up six runs (five earned) on six hits and an uncharacteristic four walks.

Lannan gave up one in the second, two in the third and three in the fifth.

Tyler Clippard surrendered Chipper Jones' 15th home run in the seventh, and Saul Rivera allowed one run in the eighth.

The Nats couldn't muster any offense after averaging 6.5 runs per game on the winning streak.

Ryan Zimmerman drove in Nyjer Morgan with a single, after Morgan singled and stole second base in the first inning. But that was the extent of the scoring for D.C.

Morgan finished 2-for-4 with a run, two steals and caught stealing, which replays showed he was safe on the play. Hitting coach Rick Eckstein was ejected from the dugout arguing the play and had to be restrained by manager Jim Riggleman.

"If [Morgan] was safe, we might had gotten a run," Riggleman said. "Certainly that would have helped us from the standpoint of momentum."

Cristian Guzman had two hits, extending his hitting streak to 16 games. Zimmerman's stands at 14 with the RBI single.

THE TAKEAWAY: As good as Lannan has been this year, his home/road splits have to be somewhat troubling to anyone paying attention to them.

In 13 home starts, Lannan is 5-1 with a 1.98 ERA and 1.143 WHIP (walks + hits per inning), with a strikeout-to-walk rate of 1.90.

In 11 road starts, the lefty is 3-8 with a 5.92 ERA, 1.652 WHIP and K/BB rate of 0.96.

Two completely different pitchers.

What's also strange is that at home he's hit six batters and NONE on the road. Perhaps Lannan doesn't feel comfortable enough on the road to pitch inside?

THE GOOD: Nyjer Morgan. Continues to be the catalyst at the top of the order.

THE BAD: Adam Dunn. 0-for-4, four strikeouts.

THE UGLY: The defense. The Bad Nats came back last night, with Guzman and Josh Willingham each committing an error.

NEXT GAME: The conclusion of the abbreviated two-game series with the Braves. Craig Stammen (3-6, 5.40) looks to get back on the good foot against Nat-killer Derek Lowe (11-7, 4.15) at 7:10 pm.