Houston ? Shortly after his impressive major-league debut, Chicago Cubs’ Ryan O’Malley was drenched with beer and splattered with shaving cream.

Welcome to the show, rookie.

Based on his first start, the 26-year-old left-hander might be staying for a while.

O’Malley pitched eight effective innings Wednesday to help the Chicago Cubs complete a three-game sweep of the slumping Houston Astros with a 1-0 victory.

“I cannot describe the feeling last night, this morning and all day today. Unbelievable,” O’Malley said.

Marlins 15, Dodgers 4

Los Angeles – Miguel Cabrera hit two homers and drove in five runs, and Cody Ross hurt his former team with four RBIs before leaving with a bruised knee.

Brewers 5, Pirates 2, 13 inn.

Pittsburgh – David Bell’s bases-loaded single, his fourth hit of the game, drove in two runs in a three-run 13th inning that carried Milwaukee.

Nationals 9, Braves 6

Washington – Ryan Zimmerman homered and singled to raise his rookie-leading RBI total to 78, and the Washington Nationals handed John Smoltz his first loss in over two months.

Reds 7, Cardinals 2

St. Louis – Bronson Arroyo ended a 10-start winless slump, and Edwin Encarnacion hit two of Cincinnati’s five home runs, helping the Reds cut the Cardinals’ division lead to 11â2 games.

Phillies 3, Mets 0

Philadelphia – Jon Lieber pitched his first shutout in more than five years, Chris Coste hit a two-run homer, and Philadelphia won its third straight over New York.

Diamondbacks 9, Rockies 5

Denver – Arizona’s Livan Hernandez pitched into the seventh and benefited from a five-run fourth inning to earn his first win since being acquired in a trade.

Orioles 3, Yankees 2

New York – Adam Loewen beat the Yankees for the second time in August, and four Baltimore relievers combined for shutout relief.

Red Sox 6, Tigers 4

Boston – David Ortiz hit his major-league-leading 42nd home run, and David Wells pitched into the seventh, helping the Red Sox avoid a sweep.

Athletics 4, Mariners 0

Oakland, Calif. – The Oakland Athletics tied a major-league record with their 15th straight victory over Seattle, getting six shutout innings from Dan Haren.

Mark Ellis homered for the second time in three games.

Devil Rays 8, Blue Jays 3

St. Petersburg, Fla. – James Shields threw six solid innings to stop his six-game skid.

Rangers 9, Angels 3

Arlington, Texas – A volatile series turned violent when Adam Kennedy charged the mound after being hit by a pitch from Texas’ Scott Feldman, triggering a bench-clearing brawl.

Twins 7, Indians 2

Minneapolis – Jason Bartlett had four hits, and Luis Rodriguez added three to lead the Twins.

Late Tuesday

Diamondbacks 2, Rockies 1, 18 innings

Denver – Luis Gonzalez singled to drive in Eric Byrnes with one out in the 18th inning in the longest game in Rockies history.

Diamondbacks relievers allowed six hits in 12 shutout innings, striking out 13 and walking four in a game that lasted 5 hours, 21 minutes.