In 1999, Fernando Tatis hit two grand slams in a single inning. . . #baseball #MLB #fblifestyle | MLB Throwbacks

Baseball history is defined by swings that flipped entire games in an instant, and Part 1 of our countdown brings three unforgettable grand slams that shook the sport. At #5, Fernando Tatis’ unreal feat on April 23, 1999 — two grand slams in a single inning, both off the same pitcher, a record that may never fall. At #4, Chris Hoiles’ May 17, 1996 “ultimate grand slam,” a walk-off blast with two outs and a full count that turned a 13-10 deficit into a 14-13 Orioles win. And at #3, David Ortiz’s