Conversation so far:
How did the 1963 season start for Sandy Koufax?
In 1963, Major League Baseball expanded the strike zone. National League walks fell 13 percent. Koufax reduced his walk rate to 1.7 in 1963, which ranked fifth in the league.

Question: Did Koufax suffer any injuries?
Self-contained rewrite: Did Koufax suffer any injuries during the 1963 season?