Conversation so far:
Is Ali in the Ken Norton article referring to Mohammed Ali?
Ken Norton is best known for his trilogy with Muhammad Ali.
When did Ken Norton first fight Muhammad Ali?
On March 31, 1973, Muhammad Ali entered the ring as a 5–1 favorite versus Ken Norton.
Did Ken Norton win his first match against Muhammad Ali?
Ken Norton won a 12-round split decision over Ali.
What did Muhammad Ali say in regards to Ken Norton?
Muhammad Ali said during an interview with Mark Cronin, Kenny’s style is too difficult for me. I can’t beat him, and I sure don’t want to fight him again....
When did Ken Norton fight Muhammad Ali again?
On September 10, 1973, Ali and Norton met at the Forum, Inglewood, California, USA, for their highly anticipated rematch.
Did Ken Norton win the rematch against Muhammad Ali?
Though the match was close,  Muhammad Ali ended up winning.

Question: Was Norton injured during either fight?
Self-contained rewrite: Was Ken Norton injured during either fight with Muhammad Ali?