In the world of sports, everything from the cups the athletes drink from to the stadiums they play in is up for grabs. The four major sports are a playing field for the teams as well as major companies hoping to influence the public. While there are some positives and negatives to sponsors, a line has to be drawn somewhere. The four major sports, Major League Baseball, the National Basketball Association, the National Football League, and the National Hockey League all generate millions of dollars from sponsors each year. Individual athletes ....