Vinales scored his first pole as an Aprilia rider and first since Assen 2021 on Saturday on the Ricardo Tormo Circuit with a brand new lap file.
The Aprilia rider rued his medium rear tyre alternative, nonetheless, and dropped to fourth having led briefly through the 13-lap race.
Within the 10-minute warm-up session on Sunday morning, Vinales was proven the black-and-orange flag after his RS-GP developed an issue.
Underneath the rules, a rider should instantly pull off observe as soon as they see the flag.
However Vinales determined to trip again to his pit field as an alternative, which was put beneath investigation by the FIM MotoGP stewards.
They decided that Vinales broke the principles and have imposed a three-place grid penalty on the Spaniard for the grand prix on Sunday afternoon.
Vinales will drop to fourth, which crucially promotes championship chief Bagnaia to pole for this afternoon’s title showdown with Jorge Martin.
Bagnaia leads Martin by 14 factors coming into the finale after Martin took his ninth sprint win of the season on Saturday.
Photograph by: Gold and Goose / Motorsport Images
Francesco Bagnaia, Ducati Group
Martin certified sixth and can keep there regardless of Vinales’ penalty, although does promote his Pramac team-mate Johann Zarco to second alongside Bagnaia.
For Bagnaia to win a second world championship, he wants to complete a minimal of fifth no matter the place Martin is to seal the deal.
Bagnaia mentioned his dash was compromised by his rear tyre alternative, having opted for the medium, whereas Martin admitted he didn’t have front-end feeling on his cost to victory.
Each riders come into the season finale carrying warnings for breaking the minimal tyre strain guidelines on the Thailand and Malaysian GPs respectively.
Ought to both of them break the rule once more, they are going to be slapped with a three-second penalty, resulting in fears by some riders in the paddock that the championship could be decided due to this.
Vinales’ penalty promoted KTM’s Jack Miller onto the entrance row in third.