Conversation so far:
Who did Yao Ming draft for?
Yao Ming was selected by the Houston Rockets as the first overall pick in the 2002 NBA draft.
What team was Yao Ming part of?
Yao Ming is most known for his career with the Houston Rockets.
What else did Yao Ming do outside of the NBA?
As of 2009, Yao Ming had led Forbes' Chinese celebrities list in income and popularity for six straight years, earning US$51 million in 2008.
Did Yao Ming compete in the olympics?
Yao Ming represented China in the 2008 Summer Olympics in Beijing.
What else did Yao Ming do during this article?
On August 6, Yao Ming carried the Olympic Flame into Tiananmen Square, as part of the Olympic torch relay.

Question: What position did he play?
Self-contained rewrite: What position did Yao Ming play?