Are MLB's new rules working? How long you stay at the stadium

MLB approves two rules for 2023 - ESPN 98.1 FM - 850 AM WRUF

How Each Baseball Stadium Will Handle Fans to Start 2021 - The New York Times

Cubs' Opening Day Makes History, Shows MLB's New Rules – The Chronicle

MLB Rule Changes: What's new for the 2023 season

Opening Day: Fans wanting a faster pace game are going to get it, says three-time Cy Young Award winner Justin Verlander

MLB new rules: Pitch clock, shift ban and new bases all in play on Opening Day 2023

MLB teams beginning to wrap heads around rule changes for 2023 - The San Diego Union-Tribune

MLB 2023 rule changes: pitch timer, larger bases, shifts

MLB rule changes 2021: Shift restrictions, pitch clock, extra innings - Sports Illustrated

New MLB rules 2023: Shift ban, pitch clock, larger bases, more