The defending World Cup champions are in action on Tuesday night, and new users at Fanatics Sportsbook can enter the promo code NYPOST at registration to claim a welcome offer for this intriguing contest between Lionel Messi’s Argentina and Algeria. New users can apply the Fanatics promo code NYPOST to receive access to the offer to bet $20 and get $350 in bonus bets immediately .  Argentina are four years removed from their triumph in Qatar, and they’re expected to be in the thick of the