Atlantic League/MLB Announce 2 New Test Rules and Retain Rules From 2019 | Indy Ball Island
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MLB Announces Experimental Rules To Be Tested During 2022 Atlantic League Season - The BayNet
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2020 MLB season: New 60-man roster rules explained - Bless You Boys
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New Rules Are Set Out to Reduce the Length of M.L.B. Games - The New York Times
2020 Official Rules Of Major League Baseball - By Triumph Books (paperback) : Target
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MLB Communications on Twitter: "A variety of experimental playing rules, which have been approved by the Competition Committee and the Playing Rules Committee, will be tested at various levels of the Minor