Hamilton will continue to run with an aerodynamic package suited to Monza's low-downforce circuit, which includes a rear wing with a lower angle of attack - approximately 40 degrees compared to Button's conventional rear wing, which is raised at around 70 degrees.

BBC: Italian GP qualifying as it happened

Mike Phillips was immediately on the centre's inside shoulder and the final act was supplied by Walker, as the Scotland left wing appeared on the other flank to switch the angle of attack again.

BBC: Ospreys 16-20 Ulster