Quartararo was flicked from his Petronas SRT Yamaha in FP3 at Turn 14 and had to be taken to the medical centre for checks on his hip – though was found to have escaped broken bones.
FP4 pacesetter Franco Morbidelli set the early pace on his Petronas SRT Yamaha with a 1m48.090s, though he would be deposed by Q1 graduate Jack Miller.
The Pramac rider fired in a 1m47.657s on his Ducati, while Morbidelli’s second lap put him just 0.002 seconds adrift.
Two minutes later, Quartararo showed no obvious ill-effects from his FP3 crash to take over provisional pole with a 1m47.657s to lead Morbidelli by 0.089s as the first runs came to an end.
Maverick Vinales moved the goal posts with two minutes to go on the works team M1 with a 1m47.125s, and improved marginally on his final lap to a 1m47.122s.
But Quartararo would deny his Yamaha stablemate, the Frenchman digging deep for a 1m47.076s in his last effort to claim his fourth pole of 2020.
Vinales held onto second, while LCR’s Cal Crutchlow registered his first front row since last year’s US GP in third.
Morbidelli found himself shuffled off the front row at the chequered flag into fourth, with Miller and Suzuki’s Joan Mir completing the top six.
Takaaki Nakagami just missed out on a place on the second row in seventh on his LCR Honda, with Q1 pacesetter Danilo Petrucci eighth on the Ducati ahead of Aprilia’s Aleix Espargaro.
Espargaro and his