Celtics fans are known to get a little too overzealous when it comes to their team’s young players. But just about everyone checking out the NBA Summer League has a craving for more Tacko. It’s hard not to be amazed by Tacko Fall, if for nothing other than the 23-year-old’s mighty stature. He stands at 7-foot-6 and owns an 8-foot wingspan. He can simply reach up to pluck rebounds out of the air and can dunk on his tiptoes. It’s fascinating to watch the big man in action, because opposing players have no shot at outreaching Boston’s young giant.