Former F1 World Champion Nico Rosberg joins Matt Baker ahead of the United States Grand Prix from Austin.They discuss whether Sergio Perez has let F1 fans down by not pressuring Max Verstappen for the drivers championshipNico gives his inside knowledge on how Mercedes can manage the Russell-Hamilton rivalryAnd they look at whether Oscar Piasri's rise in form will raise Lando Norris' game in the McLaren.