Mo’ne Davis has not even entered high school, and yet the NCAA’s strict rules over collegiate athletics may already be costing the Little League World Series star a lot of money. At 13, Davis became the first girl to throw a complete-game shutout in the tournament. She also became the first Little Leaguer to appear on the cover of Sports Illustrated and the youngest female to ever grace the cover. Davis has already been offered several opportunities to profit off of her success. Brandon Steiner, owner of …