Arizona Diamondbacks and San Diego Padres players stand on the field during the national anthem before a baseball game today in San Diego.
2/16
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ASSOCIATED PRESS
Members of the grounds crew paint the batter's box before the start of a baseball game between the Kansas City Royals and the Texas Rangers today in Kansas City, Mo.
3/16
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Fans watch a ball bounce into the stands during the third inning of an opening day baseball game between the Milwaukee Brewers and the Minnesota Twins today in Milwaukee.
4/16
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San Diego Padres' Fernando Tatis Jr. jumps to avoid being hit with a pitch as Arizona Diamondbacks catcher Stephen Vogt watches during the sixth inning of a baseball game on opening day in San Diego.
5/16
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Chicago Cubs fans make their way to Wrigley Field on opening day before a baseball game between the Chicago Cubs and the Pittsburgh Pirates today in Chicago.
6/16
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Philadelphia Phillies catcher J.T. Realmuto (10) celebrates after tagging out Atlanta Braves' Ozzie Albies (1) at home after a flyout by Marcell Ozuna during the 10th inning of an opening day baseball game today in Philadelphia.
7/16
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Chicago Cubs fans cheer during the seventh inning of a baseball game between the Cubs and the Pittsburgh Pirates on opening day at Wrigley Field in Chicago.
8/16
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Baseball fans sit in social distance squares during a baseball game between the Arizona Diamondbacks and the San Diego Padres on opening day in San Diego.
9/16
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Fans watch as New York Yankees right fielder Aaron Judge misplays Randal Grichuk's 10th-inning, game-winning double in a major league baseball game on opening day at Yankee Stadium in New York.
10/16
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A B-2 Stealth Bomber flies over Kauffman Stadium before a baseball game between the Kansas City Royals and the Texas Rangers today in Kansas City, Mo.
11/16
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Pittsburgh Pirates closing pitcher Richard Rodríguez, left, celebrates with catcher Jacob Stallings after the Pirates defeated the Chicago Cubs 5-3 in a baseball game on opening day at Wrigley Field in Chicago.
12/16
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A health and safety sign is displayed on the ground level of loanDepot park prior to the opening day baseball game between the Tampa Bay Rays and the Miami Marlins today in Miami.
13/16
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The Miami Marlins and the Tampa Bay Rays play during the second inning of a baseball game on opening day in Miami.
14/16
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Philadelphia Phillies' Jean Segura, center, celebrates with teammates after hitting a game-winning RBI-single off Atlanta Braves relief pitcher Nate Jones during the 10th inning of an opening day baseball game today in Philadelphia.
15/16
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Milwaukee Brewers' Orlando Arcia celebrates with teammates after driving in the winning run during the 10th inning of the team's opening-day baseball game against the Minnesota Twins today in Milwaukee.
16/16
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A DJ plays on the sidewalk behind plastic barriers as diners and pedestrians pass restaurants outside Yankee Stadium before an opening day baseball game against the Toronto Blue Jays today in the Bronx borough of New York.