Dark clouds hang over Major League Baseball. There are reports that about 20 players may be suspended because of their connections to a Miami clinic that dispensed performance-enhancing drugs. (Photo taken Sunday at Yankee Stadium.) Jason Szenes /EPA /LANDOV hide caption

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Little League baseball players in New York, where donations have helped teams and leagues get the 2013 season started. Pitch In For Baseball hide caption

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Ouch! Carlos Quentin (left) of the San Diego Padres charged the mound Thursday after Los Angeles Dodgers pitcher Zack Greinke (right) hit him with a pitch. In the brawl, Greinke broke his left collarbone. Denis Poroy/Getty Images hide caption

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The Dominican Republic celebrates after beating the Netherlands 4-1 in Monday's semifinal game of the World Baseball Classic in San Francisco. Jeff Chiu/AP hide caption

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Puerto Rico's Alex Rios celebrated Sunday with teammates after hitting a two-run home run in the seventh inning against Japan in the semi-finals of the World Baseball Classic at AT&T Park in San Francisco. Terry Schmitt /UPI /Landov hide caption

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Major League baseball will begin random regular-season blood tests for human growth hormone, seen here in an injector pen holding about one week's worth of HGH doses at the clinic of Dr. Mark Molitch of Northwestern University. M. Spencer Green/AP hide caption

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Craig Biggio of the Houston Astros led the 2013 Hall of Fame voting, but fell short of the 75 percent required for induction in Cooperstown. No players were chosen in the balloting. Justin Sullivan/Getty Images hide caption

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San Francisco Giants third baseman Pablo Sandoval rounding the bases after one of his three home runs last night. Doug Pensinger/Getty Images hide caption

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Detroit Tigers manager Jim Leyland has seen a lot in his day, but never a World Series matchup between his team and the Giants. Karl Mondon /MCT /Landov hide caption

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San Francisco Giants relief pitcher Sergio Romo reacts after the final out in Game 7 of baseball's National League Championship Series against the St. Louis Cardinals on Monday in San Francisco. David J. Phillip/AP hide caption

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Detroit Tigers' Miguel Cabrera hits a two-run home run in the fourth inning during Game 4 of the American League Championship Series against the New York Yankees Thursday. Paul Sancya/AP hide caption

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