2019 Baseball Hall of Fame class: Orioles' Mussina, Yankees' Rivera, Seattle's Martinez, Halladay - WTOP News
Two Yankees Elected To Cooperstown; Mariano Rivera First Unanimous - The Runner Sports
Closing Perfect: Mariano Rivera Becomes First Unanimous Election to Cooperstown, by Reynaldo Cruz
Mariano Rivera's unanimous election leads Hall of Fame storylines - Sports Illustrated
Reviewing The Brew: My Fansided 2020 Mock Hall Of Fame Ballot
Statheads, Rejoice: Hall of Fame Voting Is Starting to Make Sense - The Ringer
Mariano Rivera becomes the first Baseball Hall of Fame unanimous selection - Los Angeles Times
Mariano Rivera, Edgar Martinez, Roy Halladay, and Mike Mussina elected to Hall of Fame - The Boston Globe
Rivera, Halladay, Martinez seem set for Hall election
Rivera should be a shoo-in, Martinez gets final shot for Cooperstown
Mariano Rivera's Unanimous Induction Shows An Evolving Cooperstown
Rivera should be a shoo-in, Martinez gets final shot for Cooperstown
Rivera, Halladay, Martinez seem set for Hall of Fame election
Edgar Martinez Confounds Peers Even as He Joins Them in Cooperstown - The New York Times