The daughters of boxing legend Muhammad Ali, Maryum and Hanna, say "he's not in pain" and has "never been on his death bed".
Recent rumours claimed Ali, who suffers from Parkinson's disease, was unable to speak, but his daughters dismiss this and say he is "doing well".
Ali became the first boxer in history to win the heavyweight world title three times.
Ali's daughters are in London with director Clare Lewins to promote the British release of the documentary "I am Ali".