When Joe Flacco joined the Baltimore Ravens in 2008, the rookie thought he would have to wait a long time to show off his skills. That didn't happen. First the team's starting quarterback got injured, then the backup became sick. Joe was the new starting quarterback He was under pressure to lead his team to victory, and he quickly stepped up to the challenge. In 2013, he led the Ravens to a Super Bowl victory against the San Francisco 49ers. Joe...