MLB umpire job responsibilities
Eastern League's Matsuda working to become first major league umpire from Japan
Perspectives: Baseball umpires spur litigation in Minnesota – Minnesota Lawyer
To The Fence Umpires At The Local Little League: Be Quiet & Watch
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MLB: Umpire Hernández blew calls, losing World Series job - The San Diego Union-Tribune
MLB: Umpire Hernandez blew calls, losing World Series job
How Much Does An MLB Umpire Make?
Umpire, Clearly Going for a Record, Ejects Three Rangers in About One Minute - Bleacher Nation
Baseball Umpires Don't Get Overtime. Does That Affect Extra Innings? : NPR
Hazards of the Job: Umpire Injury, Told by Those Who Witnessed It
MLB Umpire Salary Revealed - How Much Do Baseball Umpires Make?
Joe West breaks umpiring record with 5,376th game
Umpire The Winning Run
Deadspin's deep dive into umpire stats: accuracy and consistency are key
As MLB moves toward using 'robot umpire,' getting strike/ball calls right is the goal
