Conversation so far:
When did Mike Tyson start boxing professionally?
Mike Tyson made his professional debut as an 18-year-old on March 6, 1985, in Albany, New York.
Who did Mike Tyson fight in his debut on March, 1985?
Mike Tyson defeated Hector Mercedes via first-round TKO.

Question: What other people did he fight?
Self-contained rewrite: What other people did Mike Tyson fight in his early career besides Hector Mercedes?