The details of how the 2020 baseball season will be played are intense - NBC Sports
Baseball Roster Rules
A look at 60-man player pools around MLB
Frenzy Part II? What to expect when MLB roster freeze lifts
Details of MLB-players' union agreement on 2020, '21 seasons
MLB will be different after rosters are limited to 13 pitchers - Sports Illustrated
What to know about new MLB rules for shortened 2020 season - The San Diego Union-Tribune
The RosterResource Offseason Transaction Tracker Is Here!
MLB free-agency and trade tracker: Latest news and transactions - The Athletic
MLB announces multiple rule changes for 2019, 2020 seasons, including single trade deadline, expanded rosters and more
The RosterResource Pages Are Now in Offseason Mode