MLB rule changes for 2020
Ghost runner' in extra innings made permanent by MLB
MLB's runner on second base in extra innings rule is history - Bleed Cubbie Blue
Dodgers' Adrian Gonzalez slams World Baseball Classic as Kenley Jansen slides in – Daily News
World Baseball Classic: Highlights, lowlights from best one ever - Sports Illustrated
MLB Tweaks Pitch Clock Rules Ahead of Opening Day – NBC 6 South Florida
2023 World Baseball Classic rules: Pitcher use limitations, run rule, extra innings, relegation - AS USA
Rules Committee Acts To Regulate the Invasion of the Late-Inning Zombies
2023 World Baseball Classic: How many players are allowed on the roster for each team? - AS USA
MLB's new extra-innings rule is here and -- surprise! -- it's glorious - ESPN
Twins sending six major leaguers to upcoming World Baseball Classic – Twin Cities
What Is The World Baseball Classic?
World Baseball Classic adopts MLB rule for extra innings
MLB, players' association agree to keep automatic runners in extra innings for 2022 - ESPN
World Baseball Classic adopts MLB rule for extra innings