Conversation so far:
What was George Brett's Pine Tar incident?
The Pine Tar Incident was a controversial incident during an American League baseball game played between the Kansas City Royals and New York Yankees on July 24, 1983.
What was the purpose of putting Pine Tar on a bat?
Pine tar is a legal substance used by hitters to improve their grip.

Question: Did he have a substance on his bat during this game?
Self-contained rewrite: Did George Brett have Pine Tar on his bat during the Kansas City Royals and New York Yankees 1983 game?