SF Giants: Wilmer Flores, Hunter Pence wearing masks
January 26, 1919: The Flu Mask Baseball Game – Society for American Baseball Research
MLB uniform maker switches to producing medical masks, gowns - WHYY
Cleat taps, air high fives, masks, and dugout rotations: Cardinals test new virus rules | St. Louis Cardinals | stltoday.com
Coronavirus pandemic: Using baseball uniforms, Orange County mom creates hundreds of face masks for cancer patients - ABC7 Los Angeles
Look: Some players wear masks during Korean Baseball game
WBSC - World Baseball Softball Confederation
Major League Baseball to Players and Staff: Wear Mask or You're Out!
Company that makes MLB uniforms is now using baseball jersey fabric to produce medical masks and gowns - MarketWatch
Echoing history, Army Reserve Soldiers play baseball in gas masks > U.S. Army Reserve > News-Display
The Surreality of Watching Korean Baseball Now - The Atlantic
Some players will wear masks during games this baseball season | Major League Baseball | madison.com
Youth baseball in a pandemic: Masks, social distancing and warnings | Coronavirus | bendbulletin.com
Opening day amid virus: Masks, empty parks, social justice
MLB masks a new addition to Marlins baseball - South Florida Sun Sentinel - South Florida Sun-Sentinel
Some players will wear masks during games this baseball season | Major League Baseball | madison.com
From baseball uniforms to medical masks, gowns | BusinessMirror
Masks in the dugout? Is Major League Baseball serious? Let's hope not. | David Murphy
Some players will wear masks during games this baseball season | Major League Baseball | madison.com
MLB tightening virus protocols, including mandated masks in bullpen and dugout | CBC Sports
Pennsylvania's new mask rules should have no effect on Pirates | Pittsburgh Post-Gazette
MLB players wearing masks on the field – and some may in games
