Baseball Rules rachel - 0 When did MLB introduce video replay for reviewing umpire calls? 1998 2008 2014 2020 How many balls are required for a batter to be awarded first base with a walk? 2 3 4 5 What is the "Infield Fly Rule" designed to prevent in baseball? Baserunning Collisions Outfield Errors Unintentional Walks Double Plays In what year was the designated hitter (DH) rule introduced in Major League Baseball (MLB)? 1959 1973 1985 2000 Who is credited with formalizing the modern rules of baseball in the 1840s? Babe Ruth Alexander Cartwright Ty Cobb Jackie Robinson Time's up