Oscar Piastri says he is not prepared to sacrifice his own chances to help McLaren team-mate Lando Norris secure the drivers’ championship in Qatar this weekend.

McLaren say the problem that caused the disqualification of both their cars from the Las Vegas Grand Prix was a concern from the beginning of the race.

Lando Norris, who finished second before disqualification, and Oscar Piastri, who finished fourth, were both stripped of their points in Las Vegas, reigniting the title battle with Max Verstappen with...