Conversation so far:
How did Ingemar Johansson get started in boxing?
Ingemar Johansson's introduction to the top rank of the sport was inauspicious. At age nineteen he was disqualified at the Helsinki 1952 Summer Olympics in the heavyweight competition
Why was Ingemar Johansson disqualified?
At age nineteen, Ingemat Johansson was disqualified for passivity at the Helsinki 1952 Summer Olympics in the heavyweight competition in a fight against eventual Olympic gold medalist Ed Sanders.
Did Ingemar Johansson win anything at the 1952 Olympics or was he completely disqualified?
Ingemar Johansson maintained he was trying to tire his Sanders, not evade him. Nevertheless, his silver medal was withheld for poor performance and only presented to him in 1982.
What did Ingemar Johansson do after the 1952 Olympics?
After the 1952 Olympics, Ingemar Johansson went into seclusion for six months and considered quitting boxing.
How did Ingemar Johansson's career go after the 1952 Olympics?
After the Olympics, Ingemar Johansson returned to the ring and turned professional under the guidance of the Swedish publisher and boxing promoter Edwin Ahlquist, winning his first 21 professional fights

Question: Did he quit boxing?
Self-contained rewrite: Did Ingemar Johansson quit boxing?