McLaren title rivals looking warily for Verstappen's late charge

McLaren's duelling pair of world championship leader Oscar Piastri and Lando Norris will be looking warily in their rear-view mirrors this weekend at the United States Grand Prix for Max Verstappen.Norris took pole last year in Austin and finished fourth, and knows he must beat his 24-year-old Australian team-mate Piastri and Verstappen if he is to keep alive his title challenge.