Conversation so far:
When did Steve Carlton's career begin with the Phillies?
Steve Carlton was traded to the Philadelphia Phillies on February 26, 1972, just before the 1972 season for pitcher Rick Wise.
Which team had Steve Carlton played with before joining the Philadelphia Phillies?
Steve Carlton debuted with the St. Louis Cardinals in 1965 and by 1967 was a regular in the Cardinals rotation.
What was Steve Carlton's record like before he joined the Phillies? Was he traded because he was good or bad?
Steve Carlton had won 77 games to Rick Wise's 75, and both were considered among the game's best pitchers.

Question: What was his ERA?
Self-contained rewrite: What was Steve Carlton's ERA?