As it happened: Quartararo suffers shocking day-one at the Argentine MotoGP

Vinales is getting his practice starts in early and it was a very good one for the Aprilia rider on the exit of pit lane. Could he be doing that from pole later this weekend? 

And we're underway with MotoGP P2 in Argentina. 

Good evening and welcome back to Practice day at the Argentina MotoGP. FP2 is coming up in just over 10 minutes time.

Quartararo misses out on the top ten, that could be crucial.

Sensational lap again from Vinales as he finds four tenths. 

Cracking lap from Vinales as he goes quickest on his first time attack lap. Marini goes second for Ducati. 

With a new medium rear tyre, Bezzecchi breaks into the 1m 39s to go fastest. 

Quartararo is struggling as he goes tenth - one second down on Vinales. 

Vinales finds nearly two tenths. 

Vinales goes quickest and is on another very quick lap...

We're now into the low 1m 40s as Morbidelli goes quickest from Espargaro. 

Here we go! Vinales goes fastest with a time of 1:40.559s. The Aprilia rider is riding with so much confidence at the moment. 

Espargaro narrowly misses out on top spot but does move up to third behind Nakagami and Martin. 

Augusto Fernandez goes ninth for GASGAS Tech 3 KTM - a solid start for the only rookie in the class. 

Razlan Razali has just confirmed they hope to have Miguel Oliveira back for the next round in America. 

Ducati have never won at the Termas de Rio Hondo circuit but Martin is showing pace early on as he goes quickest. 

Quiet throughout the Portimao round, Takaaki Nakagami has gone fastest for LCR Honda ahead of Maverick Vinales and Aleix Espargaro. 

Franco Morbidell is the current pacesetter as the opening laps continue to come in.

Practice 1 could be crucial if rain does arrive later on - so stay tuned for possible time attacks as the session develops.