New Era is closing its Western New York factory, eliminating approximately 200 union jobs in favor of non-union workers at a new plant in Florida.
New Era is the official hat provider for Major League Baseball.
"As one of the most prominent unions in the US, we want to elevate the voices of the laborers whose work makes our game possible," Sean Doolittle tweeted, becoming the first major league player to throw his support behind the workers at the Derby plant.
"This isn’t the first time that jobs of union garment workers who make MLB uniforms have been in jeopardy. In 2017, MLB was able to step in and help broker a deal to save 600 textile jobs at the Majestic factory in PA. It was a win for everyone," Doolittle tweeted.
"As players continue to stand together it’s important that we also continue to stand in solidarity with the union labor that has helped make our game what it is today," he tweeted.
"We stand in solidarity with the Derby, NY factory families who make the iconic on-field hats we put on everyday and fans wear to support their favorite team," Doolittle tweeted. "We hope MLB can help these NY families the way they helped the uniform workers in PA. Otherwise, it’s ."
New Era makes about 65 million baseball caps per year.