February 15, 2023
Major League Baseball Vice President of On-Field Strategy Joe Martinez demonstrates some of the new rule changes the 2023 season Tuesday, Feb. 14, 2023, in Scottsdale, Ariz. Opening day will feature three of the biggest changes in baseball since 1969: Two infielders will be required to be on either side of second base, base size will increase to 18-inch squares from 15 and a pitch clock will be used. (AP Photo/Morry Gash)