Conversation so far:
What kind of legacy does Charles Barkley have?
During his 16-year NBA career.
What did he do to in his career to have a legacy?
Barkley was regarded as one of the most controversial, outspoken and dominating players in the history of basketball.
What made him controversial?
His confrontational mannerisms often led to technical fouls and fines on the court, and his larger than life persona.
Did he have conflicts with his teammates due to this?
CANNOTANSWER.

Question: What are some of the things he was outspoken about?
Self-contained rewrite: What are some of the things Charles Barkley was outspoken about?