WASHINGTON — Washington Nationals rookie pitcher Tanner Roark wanted to keep going.

He had thrown 101 pitches — 23 more than he’d ever thrown in a single game — but still wasn’t ready to call it a night.

“I said, ‘Nice game.’ He said, ‘You sure I’m through?’ ” Nationals manager Davey Johnson said as he began to smile. “I said, ‘Yeah, you’re through.”

Roark was through, but Washington certainly isn’t.

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The right-hander threw seven shutout innings, and the Nationals beat the Atlanta Braves 4-0 to sweep a day-night doubleheader Tuesday, keeping the Braves from clinching the NL East title.

The Nationals, who beat Atlanta 6-5 earlier in the day in the makeup of the series opener postponed by a shooting rampage Monday at the nearby Navy Yard, moved 4½ games behind Cincinnati for the NL’s second wild-card berth.


• The AL West-leading Oakland Athletics sold out the normal Coliseum seating for the playoffs so fast Tuesday they have decided to open up additional seating in the third-deck view level by removing the green tarps over those sections. With approximately 12,000 extra seats available — which includes space for overflow media — the capacity will go from 35,067 to 48,146.

Barry Bonds has been ordered to meet with U.S. Probation Department officials to discuss terms of his 30-day house arrest.

• The Los Angeles Dodgers have pushed back ace Clayton Kershaw’s start to Saturday in San Diego, three days after he was originally scheduled to pitch.

• Houston All-Star catcher Jason Castro has been placed on the 15-day disabled list with discomfort in his right knee, ending his season.