Various rule changes for 2020 have been made official. You can click here to read about the changes to roster limits, adjustments to the injured list, and option periods for pitchers and two-way players.
One change had not been mentioned previously - and it's a doozy!
Managers will have only 20 seconds to decide whether they want to challenge a call instead of a leisurely 30 seconds. Whoa! ... Alex Cora challenged 33 calls last season. If this new rule had been in effect, it would have cut 330 seconds (5 minutes, 30 seconds) off the entire Red Sox season.