The undisputed Unified World Heavyweight Champion, Anthony Joshua (AJ) says a health issue left him “tired” and “drained” in the build-up to his June defeat by Andy Ruiz Jr.
Joshua reclaimed his three World titles in Saudi Arabia on Saturday, dominating the Mexican over 12 rounds.
Conspiracy theories had circulated after his initial defeat, one of the biggest shocks in heavyweight history.
“I had some issue with my health which I was going through for a long time,” Joshua told the BBC’s Mike Costello.
“I didn’t know what was wrong with me. I felt so tired and drained and thought it must be down to training.
“In the changing room before the fight I got a bucket of ice and was putting my head in it thinking ‘why do I feel so tired?’
“The responsibilities of being world champion are difficult. All that stuff, feeling so tired, dealing with obligations.
“Now I have energy, I haven’t missed a session.”
The Briton added: “After my check-ups it showed what the problem was and this is what you have to get sorted.
“Even in this camp I had an operation done but as I’d started training in June I had no issues.”
Joshua refused to say what the operation was but it is understood the procedure he had in June was linked to the issue diagnosed after his defeat by Ruiz.
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