KANSAS CITY, Mo. — Noah Syndergaard threw six dominant innings, Neil Walker hit his first homer with the Mets and New York beat Kansas City 2-0 after the Royals were given their 2015 World Series rings Tuesday.

Syndergaard (1-0) was the only pitcher to beat the Royals in the World Series last year, winning Game 3 after intentionally throwing his first pitch above Alcides Escobar’s head. Escobar started this one with a triple, but then Syndergaard struck out the next three batters and retired 12 straight before Kendrys Morales’ double opened the fifth.

Syndergaard allowed three hits, walked one and struck out nine.

Syndergaard pitched out of a bases-loaded jam in the sixth, striking out Morales on three swings. The Royals went 0 for 7 with runners in scoring position.

The Mets acquired Walker in a December trade with Pittsburgh. He homered on a 1-0 fastball from Chris Young (0-1) in the fourth after Yoenis Cespedes walked. That was the first hit Young allowed.

TIGERS 8, MARLINS 7: Ian Kinsler had four RBI, including a run-scoring single in the 11th inning, and Detroit overcame a ninth-inning meltdown at Miami.

AMERICAN LEAGUE

ASTROS 5, YANKEES 3: Carlos Correa reached on an eighth-inning dribbler that pitcher Dellin Betances threw over first baseman Mark Teixeira as Jose Altuve scored the tie-breaking run, and Houston won at New York to take four straight openers for the first time in franchise history.

Yankees Manager Joe Girardi argued with plate umpire Dana DeMuth that Correa should have been called out for running on the fair side of the foul line, causing Betances to throw the ball over Teixeira for an error.

After the umpires conferred, the call was upheld and Girardi played the remainder of the game under protest. Luis Valbuena added a two-run single for a 5-2 lead.

RAYS 3, BLUE JAYS 2: Baseball’s new rule on breaking up double plays gave Logan Forsythe and Tampa Bay a disputed victory at St. Petersburg, Florida.

With the bases loaded and one out in the ninth inning, Edwin Encarnacion of Toronto hit a grounder to third. After taking a throw from Evan Longoria for the force at second, Forsythe made an errant relay that appeared to allow the go-ahead run to score.

Rays Manager Kevin Cash asked for a replay review, claiming Jose Bautista violated the new “Chase Utley Rule” governing slides.

Replay umpires in New York ruled that Bautista did slide inside the bag to illegally hinder Forsythe. The call was changed to a game-ending double play.

MARINERS 10, RANGERS 2: Nelson Cruz hit one of the four Seattle homers, fellow former Texas player Leonys Martin had a tie-breaking double and the Mariners bounced back from an opening-day loss at Arlington, Texas.

NATIONAL LEAGUE

GIANTS 2, BREWERS 1: Johnny Cueto pitched seven solid innings in his San Francisco debut at Milwaukee.

PIRATES 6, CARDINALS 5: Jordy Mercer singled home Gregory Polanco from second base with one out in the 11th inning to lift Pittsburgh at home.