Conversation so far:
When did Charles Barkley enter the Olympics?
Barkley competed in the 1992 and 1996 Olympic Games.
What did he train for?
Barkley was invited by Bob Knight to try out for United States men's basketball team for the 1984 Summer.
How was the tryout?
He made it all the way to final cuts, but wasn't selected for the team.

Question: Why wasn't he selected?
Self-contained rewrite: Why wasn't Barkley selected for the US Men's Basketball team?