def opening_day_roster(year)
      game = get_opening_day_game(year)
      rosters = game.get_rosters
      rosters[0].team_name == city + ' ' + name ? rosters[0] : rosters[1]
    end
def opening_day_roster(year)
      game = get_opening_day_game(year)
      rosters = game.get_rosters
      rosters[0].team_name == city + ' ' + name ? rosters[0] : rosters[1]
    end
Returns a Roster object representing the opening day roster for this team
 for the specified year.