answers: Fernando Tatís
context: park, at spacious Forbes Field on July 25, 1956. Pirates manager/third base coach Bobby Bragan instructed him to stop at third, but Clemente ran through the stop sign to score the winning run. Alan Trammell's June 21, 1988 and Chris Hoiles' May 17, 1996 grand slams occurred under the cliché situation: bases loaded, two outs, full count, bottom of the ninth inning, and down by three runs. The most recent walk-off grand slam was hit by Jason Kipnis of the Cleveland Indians on September 19, 2018, which was also his 1,000th career hit. Three players have hit two walk-off grand </s> (nowadays) of inside-the-park home runs. On July 25, 1956, Roberto Clemente became the only MLB player to have ever scored a walk-off inside-the-park grand slam in a 9–8 Pittsburgh Pirates win over the Chicago Cubs, at Forbes Field. On April 23, 1999, Fernando Tatís made history by hitting two grand slams in one inning, both against Chan Ho Park of the Los Angeles Dodgers. With this feat, Tatís also set a Major League record with 8 RBI in one inning. On July 29, 2003 against the Texas Rangers, Bill Mueller of the Boston Red Sox became the only player in </s> the first game of a doubleheader against the Pittsburgh Pirates, leaving him with a 3-RBI single. In both cases, the other three runs still counted because only the player who passes his teammate is called out. The three baserunners are able to score. Both of these hits took place with fewer than two outs. Prior to 1920, if a batter hit a walk off home run, he would receive credit for advancing only as many bases as necessary for the winning run to score. Therefore, a walk-off grand slam in a tie game would have officially been scored as a
question: who hit 2 grand slams in the same inning