Andina news agency reports that Peru’s wrestler Sixto Barrera debuts today at the Beijing 2008 Olympic Games in Men’s Greco-Roman Wrestling, 74 kg., at 6:30 p.m. Beijing time (9:40 p.m. Perú time or 10:40 p.m. U.S. eastern time, notes blogger Peruanista). The 24-year-old Peruvian wrestler is counting on God’s grace, he says, to give him the strength to achieve victory in the wrestling ring. Sixto Barrera qualified for the 2008 Summer Olympics after winning the gold medal (Greco-Roman wrestling, 66-74 kg) at the Pan American Games in Colorado Springs, Colorado. That victory secured him the only available spot at the tournament to travel to China. He defeated American wrestler T.C. Dantzler, 5th place in the 2006 World…