"Crazy" is how heavyweight David Tua explains his current training regime for his next big fight.
Tua, who turns 41 next month, is preparing to take on giant Russian heavyweight Alexander Ustinov in Hamilton on November 16.
The fight will mark a much-awaited return to the ring for Tua, as well as perhaps his final charge towards a world heavyweight title fight.
"Training is crazy but it is good crazy," he said. "I know it will allow me to give a good performance."
Tua told the Rotorua Daily Post yesterday he had been working hard with his endurance, power and speed training, driven by trainer Lee Parore.