WASHINGTON —Bryce Harper hit his first big league home run and Chad Tracy and Xavier Nady each connected in the eighth inning, leading the Washington Nationals to an 8-5 victory over the San Diego Padres on Monday night.

Harper became the youngest major leaguer to homer since 1998, going deep on a solo shot to straightaway center field in the third inning off right-hander Tim Stauffer. The home run came in his 15th game and 54th at-bat.

Harper is 19 years, 211 days old. Adrian Beltre of the Los Angeles Dodgers connected when he was 19 years, 171 days old on Sept. 25, 1998, according to STATS LLC.

REDS 3, BRAVES 1: Brandon Phillips drove in the go-ahead run with a double off the center-field wall and Cincinnati scored twice in the eighth to win at Atlanta.

METS 3, BREWERS 1: Miguel Batista pitched seven shutout innings of four-hit ball and Daniel Murphy supplied the offense, sending New York to a win at home.

PIRATES 3, MARLINS 2: Brad Lincoln pitched six innings to earn a victory in his first start of the season and visiting Pittsburgh ended a streak of eight consecutive losses to Miami.

PHILLIES 5, ASTROS 1: Joe Blanton pitched seven-plus strong innings and Placido Polanco homered for his 2,000th career hit to lead host Philadelphia.

AMERICAN LEAGUE

RAYS 7, BLUE JAYS 1: Cesar Ramos got his first career win after replacing the injured Jeff Niemann, and Ben Zobrist homered as Tampa Bay won at Toronto.

Niemann is expected to miss 4 to 6 weeks after fracturing his right leg when he was struck on the ankle by Adam Lind’s drive in the first inning.

INDIANS 5, TWINS 4: Shin-Soo Choo hit the go-ahead RBI single in the ninth inning to back Jeanmar Gomez’s seven superb innings and lift Cleveland to a win at Minneapolis.

ROYALS 3, RANGERS 1: Bruce Chen pitched into the seventh inning for his second straight win as Kansas City beat host Texas.

YANKEES 8, ORIOLES 5: Mark Teixeira hit a tie-breaking two-run homer in the seventh inning, Curtis Granderson also connected, and New York won at Baltimore.

WHITE SOX 7, TIGERS 5: Dayan Viciedo homered and hit a go-ahead two-run single to finish with four RBI, helping Chicago rally to beat visiting Detroit.

NOTES

CARDINALS: St. Louis recalled right-handed reliever Eduardo Sanchez from Triple-A Memphis and released lefty J.C. Romero.

ANGELS: Torii Hunter was placed on the restricted list amid reports his teenage son was arrested in a sexual assault case in Texas.

MLB: Major League Baseball management fired Shyam Das, the arbitrator who overturned Ryan Braun’s drug suspension.

RAYS: Tampa Bay placed outfielder Desmond Jennings (sprained left knee) on the 15-day disabled list and recalled utilityman Stephen Vogt from Triple-A Durham.

ROYALS: Starter Danny Duffy was diagnosed with a torn ulnar collateral ligament in his left elbow and placed on the 15-day disabled list.