MANAUS, Brazil (AP) — Pedro Canuto wears his pads and practices passing the football a few hundred yards from where boats filled with tourists are navigating the Amazon River into the rainforest. A quarterback for Manaus FA, arguably the best American football team in the region, the 20-year-old could be playing soccer, the sport for which Brazil is passionate. But he chooses to play a game most of his countrymen know little about.