Leclerc among trio of drivers 'under investigation' in Japan

To ensure Formula 1 drivers do not drive unnecessarily slowly during the out- or in-laps in qualifying, they must have completed a lap of the 5.8-kilometre circuit within 1:54.0.

Race organisers choose this more often to ensure that the entire field does not pile up in the final sector. In Singapore, this rule did not apply and so we saw an awful lot of traffic in sector 3 there, which hampered drivers who were on a flying lap quite a bit.