Harmon Killebrew ruptures hamstring in right leg in his eighth American League All-Star appearance at the Houston Astrodome and was disabled July 10-August 31. Killebrew was stretching for a throw from shortstop Jim Fregosi and the clay gave way and Harmon said “he could hear it split like a rubber bad”. The NL ended up winning the game 1-0.
Excerpt from Steve Aschburner book entitled Harmon Killebrew – Ultimate Slugger