Eastern League's Matsuda working to become first major league umpire from Japan
Red Sox-Rays: Umpires explain why Kevin Kiermaier's hit was a ground-rule double in 13th inning
Should MLB use an automated strike zone in place of umps? “Yes, a thousand percent yes.” – The Denver Post
Why is MLB still using 6 umpires in postseason games? - Bleed Cubbie Blue
MLB umpires have a new signal to call this spring - Sports Illustrated
How Much Does An MLB Umpire Make?
Baseball's new electronic strike zone debuts in Worcester
To The Fence Umpires At The Local Little League: Be Quiet & Watch
Don't Ignore The Signs! How To Become An MLB Umpire.
MLB: Umpire Hernandez blew calls, losing World Series job
MLB: Umpire Hernández blew calls, losing World Series job
They Call 'Em Like They See 'Em - Twinkie Town
MLB Umpire Salary Revealed - How Much Do Baseball Umpires Make?