MLB opening day will feature new rule changes
Miami Marlins kick off first season under new MLB rule changes - Axios Miami
MLB playoffs to kick off with wild-card round
MLB opening day has 14 clock violations, stolen base spike
The Marlins Go All-In on Baseball's New Rules - The New York Times
MLB's rule changes for 2023, explained
New 2023 MLB Rule Changes: Pitch clock, larger bases, shift bans
NFL makes broadcast changes, including single-header rule and playoff game kickoff times
Marlins Shopping Four Starting Pitchers - Metsmerized Online