Click the green button to start and enter the correct answers below
Name the pairs of MLB batters and pitchers with the most home runs hit off/surrendered to one another from 1919-2010.
WARNING: Some pitchers here are relatively obscure, so you will likely get a lot more batters than pitchers. -- Years listed are first and last of player's career. For space reasons, the last year of a career which overlaps the years 1999-2000 is truncated (e.g., 1996-10 = 1996-2010). Some players who played in 2010 have also played in 2011, but their 2011 stats are not included here. An asterisk (*) after a player's name indicates that he played prior to 1919, though his pre-1919 stats are not included here. Team listed is the player's primary team; i.e., the one on which they played the most games. See first comment for team/franchise abbreviations.