It later emerged de Vries had reported a brake-by-wire issue at the start of the session.
Once the car was retrieved and barrier repaired following a lengthy stoppage, the session restarted – and then stopped again immediately.
Pierre Gasly – whose Alpine team had worked at lightning speed to get his car ready after a spectacular engine failure in practice – hit the wall at the same place at de Vries, terminally damaging the righthand side of his machine and bringing out the red flag again.
More barrier repair was required, and after another long stoppage cars squabbled to get back on track first – George Russell was the most at risk, only being 15th-fastest after the first runs.
Leclerc would ultimately set the fastest lap of Q1 – a 1min 41.269sec – with Zhou Guanyu, Nico Hülkenberg, Kevin Magnussen, Pierre Gasly and Nyck de Vries knocked out.
When Q2 commenced, it was Perez that set the early pace after the first runs, improving on Leclerc’s previous benchmark by a tenth.
Verstappen would ultimately top the timesheets with a 1min 40.822sec, but the big-name loser was Russell who was knocked out by 0.004sec by his team-mate Lewis Hamilton – “Sugar – we had the pace this weekend!” was the young charge’s reaction.
Also eliminated in Q2 was Esteban Ocon, Alexander Albon, Valtteri Bottas and Logan Sargeant with both McLarens and Yuki Tsunoda making it through.