Best of MLB opening day

Padres outfielderMatt Kemp is introduced before the game against the at Petco Park.

Rays outfielder Kevin Kiermaier slides safely into home plate as Blue Jays pitcher R.A. Dickey goes for the tag.

Dodgers outfielder Yasiel Puig dives back to first on a pick-off attempt against the Padres.

Rockies outfielder Carlos Gonzalez celebrates with Gerardo Parra after hitting a home run against the Diamondbacks.

Angels shortstop Andrelton Simmons makes a leaping throw against the Cubs.

Athletics shortstop Marcus Semien rounds third base against the White Sox.

Cubs fans celebrate as Dexter Fowler returns to the dugout after scoring a run against the Angels.

Nationals second baseman Daniel Murphy is taken out on a slide by Atlanta's Nick Markakis.

Reds shortstop Zack Cozart scores against the Phillies.

Rangers second baseman Rougned Odor steals second against the Mariners.

Giants outfielders Angel Pagan, Gregor Blanco and Hunter Pence celebrate after beating the Brewers 12-3.

Reds starter Raisel Iglesias pitches against the Phillies.

Nationals right fielder Bryce Harper hits a home run in the first inning off Julio Teheran.

General view during the national anthem as the Philadelphia Phillies and the Cincinnati Reds line up on the field during at Great American Ball Park.

Mariners third baseman Kyle Seager is congratulated at home plate by Franklin Gutierrez after hitting a home run in the second inning against the Rangers.

The Nationals and Braves line up before the game.

Giants second baseman Joe Panik reaches for the ball in an attempt to double off Milwaukee's Scooter Gennett.

Fans stand during the signing of the national anthem in Baltimore.

The Orioles' mascot runs on to the field before the game against the Twins.

Brewers shortstop Jonathan Villar hits a home run against Madison Bumgarner.

A general view of the flyover by the the 301st Fighter Wing before the game between the Mariners and Rangers in Arlington.

The Atlanta Braves Tomahawk poses before the game against the Nationals.

Giants starter Madison Bumgarner pitches against the Brewers.

Fans line up at the main entrance to Great American Ball Park in Cincinnati.

A fan checks out dressed up old time players inside Great American Ball Park before the Reds played the Phillies.

Giants catcher Buster Posey tags out Brewers second baseman Scooter Gennett at the plate.

Indians head groundskeeper Brandon Koehnke covers the field, but the game against the Red Sox was postponed.

Indians starting pitcher Danny Salazar plays with a soccer ball at Progressive Field, before the game against the Red Sox was postponed.

Fans pose outside Globe Life Park before the game between the Rangers and Mariners.

Astros pitcher Doug Fister walks off the field at Yankee Stadium, where Monday's opener was postponed

Royals players Reymond Fuentes, right, Alex Gordon, middle, and Lorenzo Cain celebrate after beating the Mets.

Mets left fielder Yoenis Cespedes reacts after striking out for the final out of the game against the Royals at Kauffman Stadium.

Mets batter Michael Conforto singles against the Royals during the eighth inning at Kauffman Stadium.

Royals center fielder Lorenzo Cain singles against the Mets during the fourth inning at Kauffman Stadium.

Royals center fielder Lorenzo Cain dives into third base after a single from Eric Hosmer against the Mets at Kauffman Stadium.

The Royals' Mike Moustakas advances to second on a wild pitch by Mets starter Matt Harvey.

Mets pitcher Matt Harvey delivers a pitch against the Royals during the first inning at Kauffman Stadium.

Royals pitcher Edison Volquez delivers a pitch against the Mets during the first inning at Kauffman Stadium.

Blue Jays catcher Russell Martin high fives teammates after they beat the Rays at Tropicana Field.

Blue Jays shortstop Troy Tulowitzki high fives third base coach Luis Rivera after he hit a two-run home run during the eighth inning at Tropicana Field.

Rays left fielder Corey Dickerson hits a solo home run during the ninth inning against the Blue Jays at Tropicana Field.

Jays first baseman Chris Colabello forces out Rays first baseman Logan Morrison.

Blue Jays starter Marcus Stroman reacts after the end of the first inning.

Blue Jays right fielder Jose Bautista is congratulated in the dugout after scoring a run in the first inning against the Rays.

Rays starter Chris Archer talks with catcher Hank Conger during the first inning against the Blue Jays.

Actor George Wendt throws out the first pitch before the game between the Rays and Blue Jays at Tropicana Field.

A general view of Tropicana Field prior to the game.

MLB commissioner Rob Manfred in Tampa.

Pirates shortstop Jordy Mercer reacts after an RBI double in the eighth inning against teh Cardinals.

Pirates right fielder Gregory Polanco slides into second with a double against the Cardinals.

Pittsburgh's Francisco Liriano pitches in the first inning against the Cardinals.

Pirates players line the field for the national anthem.

Pirates players stretch before hosting the Cardinals on Sunday.