Conversation so far:
When did Lee go to the Masters?
Lee Trevino said after the 1969 Masters: Don't talk to me about the Masters. I'm never going to play there again.
Was that 1969 trip, Lee Trevino's first time at the Masters?
1969 was Lee Trevino's third year on the circuit.

Question: Why did he do this?
Self-contained rewrite: Why did Lee Trevino do this after the Masters in 1969?