Conversation so far:
What happened in 1984 to Mary Decker?
Mary Decker was heavily favored to win a gold medal in the 3000 meters run at the 1984 Summer Olympics, held at Los Angeles.
Did Mary Decker win the 3000 meters run at the 1984 Summer Olympics?
Mary Decker did not finish the race, which was won by Maricica Puica of Romania (Budd finished seventh).

Question: Why not?
Self-contained rewrite: Why didn't Mary Decker win the 3000 meters run at the 1984 Summer Olympics?