
Sebastian Fundora is used to proving the doubters wrong with the lanky Californian out to upset the boxing world order by taking down Australian king Tim Tszyu.
The 26-year-old got the call-up to fight Tszyu, with two super welterweight belts on the line in Las Vegas on Sunday (AEDT), after injury to the unbeaten Sydneysider's original opponent Keith Thurman.