Conversation so far:
What was one of the youth teams Freddy Adu played on?
Adu captained the United States U-20 men's national team in January 2007.
Was there another team he played on after that?
Adu helped lead the U-23 men's national team in its campaign to qualify for the 2008 Summer Olympics in Beijing.
What position did he play?
CANNOTANSWER.
Are there any other interesting aspects about this article?
Adu scored a hat-trick in U.S.'s 6-1 victory over Poland in the group stage of the tournament.

Question: Was there another team he played on?
Self-contained rewrite: Was there another team Freddy Adu played on, other than the U-23 men's national team?