Detailed view of a batting helmet as the World Team plays the U.S. Team during the SiriusXM All-Star Futures Game at Nationals Park on July 15, 2018...
Detail shot of the the World Team helmets in the helmet rack during the SiriusXM All-Star Futures Game at Nationals Park on Sunday, July 15, 2018 in...
Philadelphia Phillies batting helmets sit in the dugout before the start of the game against the Miami Marlins at Marlins Park on July 15, 2018 in...
Martinez of the Boston Red Sox has his helmet removed by Mookie Betts after hitting a solo home run during the fourth inning of a game against the...穆奇·貝茲
Martinez of the Boston Red Sox has his helmet removed by Mookie Betts after hitting a solo home run during the fourth inning of a game against the...
Willie Harris of the Washington Nationals throws his helmet after being picked off at second base against the St. Louis Cardinals at Busch Stadium on...
Batting helmets of the Philadelphia Phillies in the dugout before a game against the New York Mets at Citi Field on July 11, 2018 in the Flushing...
Jorge Polanco of the Minnesota Twins looses his helmet as he runs the base path between second and third base after hitting an RBI triple against the...
Detailed view of a Philadelphia Phillies batting helmet in the dugout before the start of the game against the Miami Marlins at Marlins Park on July...
Yoshiaki Watanabe of Japan lifts his helmet during the Haarlem Baseball Week match between Japan and Italy at Pim Mulier honkbalstadion on July 13,...
Alessandro Maestri of Italy puts his helmet off during the Haarlem Baseball Week match between Japan and Italy at Pim Mulier honkbalstadion on July...
General view of batting helmets and bats in the Cleveland Indians dugout before the game against the Oakland Athletics at the Oakland Coliseum on...
The batting helmet and bat of Didi Gregorius of the New York Yankees rest on the turf field during batting practice before the start of MLB game...紐約洋基隊
Max Muncy of the Los Angeles Dodgers throws his helmet after striking out during the third inning of a baseball game against the San Diego Padres at...
Domincan-born baseball player Cesar Cedeno, of the Houston Astros, warms up with a bat on during a game at Shea Stadium in Queens, New York, New...
Odubel Herrera of the Philadelphia Phillies strikes out swinging as he looses his helmet during the eighth inning of a game at Citi Field on July 11,...
Danny Worth of the Detroit Tigers checks over his batting helmet and gloves in the dugout before his major league debut against the Boston Red Sox at...
Danny Worth of the Detroit Tigers checks over his batting helmet in the dugout before his major league debut against the Boston Red Sox at Comerica...
Members of the media wore hardhats on the tour of the construction site of the Nationals new baseball stadium scheduled to open in April 2008.
Vernon Wells of the Toronto Blue Jays takes his helmet off after popping out against the Texas Rangers during a MLB game at the Rogers Centre May 16,...
Sweat drips from the brow of New York Yankees Outfielder Clint Frazier as he removes his batting helmet during the MLB game between the New York...
New York Yankees Outfield Brett Gardner tosses his batting helmet to Yankees First Base Coach Reggie Willits after being stranded at first during the...
New York Yankees Outfield Brett Gardner prepares to toss his batting helmet to Yankees First Base Coach Reggie Willits after being stranded at first...
Kansas City Royals player George Brett takes his helmet off as the fans cheer during a game at Fenway Park in Boston on Sept. 5, 1993.
Billy Butler of the Kansas City Royals tosses his helmet after grounding into a force out to end the 1st inning during the game against the Cleveland...
Chris Herrmann of the Seattle Mariners throws off his helmet to grab a pitch in the dirt during the sixth inning against the Colorado Rockies at...
Helmets sit in the dugout before the game between the St Louis Cardinals and the San Francisco Giants at AT&T Park on July 5, 2018 in San Francisco,...
Ronald Acuna Jr. #13 of the Atlanta Braves tosses his helmet in the seventh inning against the Milwaukee Brewers at Miller Park on July 5, 2018 in...
Ronald Acuna Jr. #13 of the Atlanta Braves tosses his helmet in the seventh inning against the Milwaukee Brewers at Miller Park on July 5, 2018 in...
Miguel Andujar of the New York Yankees ducks as Greg Bird tries to slap him on the helmet as they celebrate a home run by Andujar in the first inning...
Washington Nationals shortstop Trea Turner tosses his batting helmet after striking out during the game between the Miami Marlins and the Washington...
Nolan Arenado of the Colorado Rockies tosses his batting helmet as he stands int he on deck circle before batting against the San Francisco Giants...
Toronto Blue Jays Infielder Yangervis Solarte tosses his batting helmet after striking out in the bottom of the ninth during the MLB game between the...
Jose Bautista of the New York Mets raises his helmet to acknowledge the fans as he comes up to bat in the first inning during MLB game action against...
Jose Bautista of the New York Mets raises his helmet to acknowledge the fans as he comes up to bat in the first inning during MLB game action against...
Jose Bautista of the New York Mets raises his helmet to acknowledge the fans as he comes up to bat in the first inning during MLB game action against...
Ryan Langerhans of the Seattle Mariners tosses his helmet after striking out against the Baltimore Orioles at Camden Yards on May 13, 2010 in...
Billy Butler of the Kansas City Royals tosses his helmet after grounding into a force out to end the 1st inning during the game against the Cleveland...
Dee Gordon of the Seattle Mariners holds on to his batting helmet as he heads for third base on a triple in the seventh inning against the Los...
Detail of helmet of Bryce Harper of the Washington Nationals in the dugout prior to the game against the Philadelphia Phillies at Citizens Bank Park...
Tim Beckham of the Baltimore Orioles holds onto his helmet as he runs to third base on his way to scoring a run in the top of the third inning...
New York Mets right fielder Jose Bautista tosses his helmet at the end of an inning as the Toronto Blue Jays beat the New York Mets 8-6 at the Rogers...
Dave Parker of the Pittsburgh Pirates waves his fist as he wears a masked helmet during an MLB Spring Training game on March 21, 1979 in Bradenton,...匹茲堡海盜隊
Victor Martinez of the Detroit Tigers puts on his helmet at first base after hitting a single in the seventh inning during MLB game action against...
Toronto Blue Jays First Base Coach Tim Leiper adjusts his helmet behind First during the MLB game between the Detroit Tigers and the Toronto Blue...
Detroit Tigers First baseman John Hicks loses his batting helmet and appears to lose his head too from tossing down his bat hard after striking out...
Alex Gonxalez of the Toronto Blue Jays flips his helmet during the game against the Chicago White Sox on May 9, 2010 at U.S. Cellular Field in...
John Tavares helmet and and name tag in the Leafs locker room. The Toronto Maple Leafs have signed John Tavares for seven years, $77 million. July 1,...
Detail view of a Detroit Tigers baseball glove and batting helmet in the dugout during the game against the Minnesota Twins at Comerica Park on April...
Lance Berkman of the Houston Astros tosses his helmet after striking out against the Arizona Diamondbacks in the first inning at Minute Maid Park on...
