Batter Up! Baseball, soundtrack of summer, is back - sort of The Los Angeles Dodgers play the Los Angeles Angels at sunset during the fifth inning of a preseason baseball game, Tuesday, July 21, 2020, in Los Angeles. (AP Photo/Mark J. Terrill)
A 2019 World Series champions sign is displayed during the Washington Nationals baseball practice at Nationals Park, Wednesday, July 22, 2020, in Washington. (AP Photo/Nick Wass)
Director of the National Institute of Allergy and Infectious Diseases Dr. Anthony Fauci reacts as Washington Nationals relief pitcher Sean Doolittle chases down his ceremonial first pitch at Nationals Park before the New York Yankees and the Washington Nationals play an opening day baseball game, Thursday, July 23, 2020, in Washington. (AP Photo/Andrew Harnik)
New York Yankees' Clint Frazier, left, watches his two-run home run against the New York Mets during the fourth inning of a baseball spring training game Saturday, July 18, 2020, in New York. (AP Photo/Adam Hunger)
Ceremonial first pitch is thrown by Dr. Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases before the start of the first inning of an opening day baseball game between the New York Yankees and Washington Nationals at Nationals Park, Thursday, July 23, 2020, in Washington. (AP Photo/Alex Brandon)
Cars along the Massachusetts Turnpike drive past a giant "Black Lives Matter" mural, Wednesday evening, July 22, 2020, outside Fenway Park, at the rear, in Boston. (AP Photo/Charles Krupa)
From left, Rob Johnston of Alexandria, Va., and his son Robbie, 15, take a photo with Ted Peters of Haymarket, Va., who calls himself "Captain Obvious" outside Nationals Park before the New York Yankees and the Washington Nationals play an opening day baseball game, Thursday, July 23, 2020, in Washington. (AP Photo/Andrew Harnik)
An opening week logo is displayed at Citi Field during the New York Mets baseball practice, Wednesday, July 22, 2020, in New York. The Mets open the season in Friday against the Atlanta Braves. (AP Photo/Kathy Willens)
FILE - In this July 14, 2020, file photo, Miami Marlins CEO Derek Jeter watches the baseball team's practice in Miami. Jeter, who knows all about games in an empty ballpark, says success this season will require adapting to the absence of fans. (AP Photo/Wilfredo Lee, File)
A TV cameraman walks among cutout pictures of fans during the seventh inning of an opening day baseball game between the Los Angeles Dodgers and the San Francisco Giants, Thursday, July 23, 2020, in Los Angeles. (AP Photo/Mark J. Terrill)
Boston Red Sox pitcher Ryan Weber delivers during the sixth inning of an exhibition baseball game against the Toronto Blue Jays, Tuesday, July 21, 2020, at Fenway Park in Boston. (AP Photo/Charles Krupa)
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The Los Angeles Dodgers play the Los Angeles Angels at sunset during the fifth inning of a preseason baseball game, Tuesday, July 21, 2020, in Los Angeles. (AP Photo/Mark J. Terrill)