For aspiring major league umpires, the road is long and hard - ESPN

Major League Baseball umpire Brian Runge having a striking season

On the Long Road, Committed to a Goal of Officiating in the Major Leagues - The New York Times

Ron Kulpa: Power-mad ump yells “I can do anything I want!” at Astros

Ron Kulpa: Power-mad ump yells “I can do anything I want!” at Astros

Even in the minor leagues, crackdown on doctored baseballs makes for a sticky situation

Bob Davidson (umpire) - Wikipedia

Some 10 umpires reportedly to opt out of shortened MLB season - The Boston Globe

No more 'generic Dad Nikes' - How MLB umpires -- yes, umpires! -- are stepping up their shoe game - ESPN

Longtime MLB umpire reflects on career

MLB Umpires Association, adamant that crews are simply upholding rule, address home-plate collision rule in statement - ESPN

MLB Umpires Association Emerges From Cave To Correct The Record

The making of a major league umpire, Sports

Rookie MLB umpire Malachi Moore knows about dealing with pressure - Los Angeles Times

Art of being an MLB umpire: ESPN's Sport Science Baseball