Umpires stay busy during shortened high school baseball, softball season
Human Fallibility and the Case for Robot Baseball Umpires
Giants' Buster Posey on catchers' conundrum: 'inherent risk' of no social distance
Do safety protocols not pertain to travel teams? - Oak Park
Photos: MLB Opening Day 2020
Dusty Baker, Astros share flight with umpiring crew from Oakland series
Robot umps and dogs, minor league ball back after lost year, Taiwan News
Observations of Umpires at Work – Society for American Baseball Research
Photos: MLB Opening Day 2020
Safe at home? Social distancing difficult around MLB plates
San Diego League gets players back on field after three-month layoff - The San Diego Union-Tribune
MLB will have minor league experiment with moving back mound
Robot umps and dogs, minor league baseball back after lost season