Tim Tszyu and Errol Spence Jr will fittingly slug it out at exactly the same weight in an intriguing blockbuster where no one can predict the outcome.
Tszyu (27-3, 18KOs) and Spence (28-1, 22KOs) both hit the scales at 159 pounds (72.1kg) at Saturday's weigh-in, as Australia's home hope places his career on the line in Sydney.