By Jake Donovan - It's down to heavyweight Deontay Wilder and reigning world amateur welterweight champion Demetrius Andrade for Team USA, who sees two more go home in the round of 16 as middleweight Shawn Estrada and light flyweight Luis Yanez fall short in their respective bouts Saturday afternoon. With all results through the first two rounds now in the books, it's on to the quarterfinals, which begins Sunday evening at the Worker's Indoor Arena in Beijing, China. [details]