THIS DAY IN BÉISBOL July 25: Roberto Clemente hits only inside-the-park, walk-off grand slam in history
With his team down three runs in the bottom of the ninth of an 8-5 game, the bases were loaded and the Pirates were desperately in need of a clutch hit. Roberto Clemente came through. And topped it off with a flourish. The dynamic young right-fielder hit a walk-off grand slam to beat the Cubs

