Conversation so far:
When did Ingemar Johansson become heavyweight champion?
Ingemar Johansson took the Scandinavian heavyweight title in 1953.
Who did Ingemar Johansson fight to win the Scandinavian Heavyweight Championsip in 1953?
Did Ingemar Johansson have any heavyweight championship losses?
In the June 1960 rematch against Floyd Patterson to defend his World Heavyweight Champion title, Ingemar Johansson was knocked out in the fifth round with a leaping left hook.

Question: did he have any problems?
Self-contained rewrite: Did Ingemar Johansson have any problems?