Interim WBO lightweight champion Michael Katsidis of Australia smiles during an interview in Las Vegas, Nevada November 24, 2010. Barely a month after the death of his older brother, Katsidis will take on WBA/WBO lightweight champion Juan Manuel Marquez of Mexico at the MGM Grand Garden Arena in Las Vegas Saturday, November 27. REUTERS/Las Vegas Sun/Steve Marcus (UNITED STATES - Tags: SPORT BOXING HEADSHOT)