Conversation so far:
What was the Pine Tar incident?
Yankees manager Billy Martin cited to the umpires a rule that stated that any foreign substance on a bat could extend no further than 18 inches from the knob.
What was the purpose of putting a foreign substance on a bat?
In the top of the ninth inning with two out, Brett hit a go-ahead two-run homer.
Did he have a substance on his bat during this game?
The umpires measured the amount of pine tar, a legal substance used by hitters to improve their grip, on Brett's bat.

Question: Did he get in trouble for this?
Self-contained rewrite: Did George Brett get in trouble for Pine Tar Incident?