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NEW YORK, NY - APRIL 05: Dogs wearing New York Mets clothing stand outside the stadium prior to the Mets hosting the Atlanta Braves during their Opening Day Game at Citi Field on April 5, 2012 in New York City. (Photo by Nick Laham/Getty Images)

Dogs wearing New York Mets clothing stand outside the stadium prior to the Mets hosting the Atlanta Braves during their Opening Day Game at Citi Field on April 5, 2012 in New York City.

MLB's cutest fans

Dogs at the stadium! Baseball's cutest fans happen to walk on four legs. These furry fans will steal your heart.