def over_under(self):
        """
        Returns the over/under for the game as a float, or np.nan if not
        available.
        """
        doc = self.get_doc()
        table = doc('table#game_info')
        giTable = sportsref.utils.parse_info_table(table)
        if 'over_under' in giTable:
            ou = giTable['over_under']
            return float(ou.split()[0])
        else:
            return None