Rick Ankiel and the Houston Astros made an impressive debut in the American League, trouncing the visiting Texas Rangers 8-2 Sunday night in the major league opener and giving Bo Porter a win in his first game as manager.

Ankiel launched a pinch three-run home run, Bud Norris pitched well for the win, and Erik Bedard threw 31/3 scoreless innings for his first career save.

"To come out with a win is perfect," Astros designated hitter Carlos Pena said. "To be part of it is really cool. To play our rivals here in Texas and to come out on top today, it's a treat."

After switching from the National League to the American League in the offseason, the Astros earned their first opening-day victory since 2006 and the 4,000th regular-season win in franchise history.

The Astros are coming off consecutive 100-loss seasons and have the lowest payroll in the majors, prompting many to predict they will be the worst team in the majors. But Houston opened in style, wearing spiffy new uniforms that brought back the orange and blue of old-school Astros teams.

Justin Maxwell hit two triples and made a nifty catch in center field. Norris allowed five hits and two runs with five strikeouts in 52/3 innings. He was one of five Astros making their first opening-day start on baseball's second-youngest team.

Bedard shut down the Rangers on one hit the rest of the way for his first save in a 10-season career.

Former Astros star Lance Berkman had two hits in his first game as Texas' designated hitter.

More openers: Twelve opening-day games were set for Monday across the majors, including the season's first interleague matchup when Josh Hamilton and the Los Angeles Angels visit the Cincinnati Reds.

The Astros' move to the American League left 15 teams in each league, meaning an A.L. vs. N.L. matchup almost every day.

"It is very strange," Reds manager Dusty Baker said.

But opening day also will include a very familiar look as the New York Yankees host the rival Boston Red Sox, albeit without injured stars Derek Jeter, Alex Rodriguez, Curtis Granderson and Mark Teixeira.

"It's still the Yankees; it's still going to be a good lineup," Boston starter Jon Lester said Sunday. "They're missing a few of their big guys, but anybody that fills in for them, it's like what I said, they're going to put professional at-bats together and still -- it's not going to be a walk in the park."

Royals: Former A's and Giants infielder Miguel Tejada was added to the roster, and left-hander Danny Duffy was placed on the 15-day disabled list.

Tejada, a six-time All-Star, spent last season with Baltimore's Triple-A team at Norfolk, batting .259 with no home runs and 18 RBIs in 135 at-bats before he was released on June 25.

Braves: Left-hander Jonny Venters was placed on the 15-day disabled list with a sprained elbow after feeling tightness in his last spring training game.

Mariners: Outfielder Jason Bay landed on Seattle's opening-day roster.

Rays: Designated hitter Luke Scott was placed on the 15-day disabled list with a strained right calf.

Astros 8, Rangers 2

Texas ab r h bi avg Houston ab r h bi avg
Kinsler 2b 3 1 0 0 .000 Altuve 2b 4 0 2 1 .500
Andrus ss 4 0 0 0 .000 Wallace 1b 4 1 1 0 .250
Berkman dh 4 1 2 0 .500 Carter lf 4 0 0 0 .000
Beltre 3b 4 0 0 0 .000 C. Pena dh 4 1 1 0 .250
Dav. Murphy lf 3 0 1 1 .333 Maxwell cf 3 2 2 2 .667
N. Cruz rf 3 0 2 1 .667 J. Castro c 4 0 0 0 .000
Pierzynski c 4 0 1 0 .250 Dominguez 3b 3 1 1 1 .333
Moreland 1b 4 0 0 0 .000 B. Barnes rf 1 1 0 0 .000
L. Martin cf 3 0 0 0 .000 Ankiel ph-rf 2 1 1 3 .500
Totals 32 2 6 2 R. Cedeno ss 3 1 1 0 .333
Totals 32 8 9 7
Texas 000 002 000-- 2 6 1
Houston 000 223 01x-- 8 9 0
E -- N. Cruz (1). LOB -- Texas 6, Houston 3. 3B -- Maxwell 2 (2). HR -- Ankiel (1), off D.Lowe. RBIs -- Dav. Murphy (1), N. Cruz (1), Altuve (1), Maxwell 2 (2), J. Castro (1), Ankiel 3 (3). CS -- Dav. Murphy (1).
Texas ip h r er bb so np era
M. Harrison (L 0-1) 5 2/3 6 6 5 3 9 100 7.94
D. Lowe 1/3 1 1 1 0 1 10 27.00
Frasor 1 0 0 0 0 1 9 0.00
J. Ortiz 1 2 1 1 0 2 15 9.00
Houston ip h r er bb so np era
B. Norris (W 1-0) 5 2/3 5 2 2 3 5 97 3.18
Bedard (S 1-1) 3 1/3 1 0 0 0 2 38 0.00
T -- 3:00. A -- 41,307.