In the greatest extra-inning comeback in major league history, the Pittsburgh Pirates score six runs in the bottom of the 11th inning to erase a five-run Cubs lead
1991 â In the greatest extra-inning comeback in major league history, the Pittsburgh Pirates score six runs in the bottom of the 11th inning to erase a five-run Cubs lead built in the top of the inning on Andre Dawsonâs grand slam. The Pirates had rallied earlier from a 7 â 2 deficit to tie the game in the 9th.