Left-Handed and Left Out at Catcher in the Majors - The New York Times

MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today

Pitching Again After 3 (Three!) Tommy John Surgeries - The New York Times

Orioles get James McCann, $19M from Mets for player to be named - NBC Sports

Going left pays off for Cubs - Chicago Sun-Times

Yankees Deal Catcher Francisco Cervelli to Pirates - The New York Times

Benny Distefano: the last MLB left-handed throwing catcher (1989) - Italian Americans in Baseball

Yankees prospect Anthony Seigler catches right-handed, plays outfield left- handed

Joe Mauer's concussion disrupted his career, Twins' trajectory 10 years ago

Giants' Kyle Harrison is now MLB's top left-handed pitching prospect

Detroit Arms Facing Test From Boston Bats - The New York Times

Andy Pettitte - Wikipedia

The Matheny Manifesto: A Young Manager's Old-School Views on Success in Sports and Life eBook : Matheny, Mike, Jenkins, Jerry B., Costas, Bob: Kindle Store

The Most Definitive Hypothetical Lefty Catcher Musings

Why Left Handed Pitching Matters in Baseball

Why No Left Handed Catchers?