MLB pitch clock: League, union sparring over 20-second limit

Pitch clocks and shift limits: MLB adopts sweeping rule changes for 2023, MLB

How pitch timer is working in Minor Leagues in 2022

Game times in Major League Baseball drop by an average of 24 minutes in first year of pitch clock - The Boston Globe

MLB pitchers discuss adapting to pitch timer in 2023

Rich Hill offers second opinion on baseball's new pitch clock rules - The Boston Globe

Automated ball-strike (ABS) system, pitch timer, bigger bases tested at Triple-A

MLB Prospect Watch: Nationals, A's, Tigers fighting for No. 1 pick in baseball's first draft lottery

BASEBALL: Rules changes similar to hockey's 2004 fixes

A 15-second pitch clock? The end of the shift? What you need to know about MLB's 2023 rule changes - ESPN

MLB rule changes: pitch clock, larger bases and more

MLB rule changes: pitch clock, larger bases and more

Major League Baseball adopts pitch clock, limits on defensive shifts, bigger bases for 2023 - CBS News

Biggest surprises in 2023 MLB season so far