New York Yankees third baseman Alex Rodriguez is hit by a pitch (you can see the ball just above his belt on the left side of his body) in the second inning of Sunday's game against the Boston Red Sox. He came back four innings later to hit a decisive home run. Dominick Reuter /Reuters/Landov hide caption

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The knuckleball grip used by Boston Red Sox pitcher Steven Wright. Good fingernails are important. Marvin Fong /The Plain Dealer /Landov hide caption

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Have bat, will travel: Casper Wells just before the start of the season, when he was with the Seattle Mariners. Four stops later, he's landed with the Philadelphia Phillies. Christian Petersen/Getty Images hide caption

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Alex Rodriguez during a July 13 game in Florida, where he was playing for the minor league Tampa Yankees while trying to recover from recent injuries. Mike Carlson /Reuters /Landov hide caption

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Pitcher R.A. Dickey of the Toronto Blue Jays throws a knuckleball against the Tampa Bay Rays at Tropicana Field in St. Petersburg, Florida. J. Meric/Getty Images hide caption

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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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