"This has been the worse and saddest thing I ever seen in a bike race. True sportsmen would never act this way," MV Agusta president Giovanni Castiglioni told his 565,000 followers on Instagram.

"If I would be (MotoGP promoters) Dorna I would ban him from world racing.

"Regarding his contract for a future position as rider of MV Agusta Moto2, I will oppose myself in every way to stop it. It won't happen, he doesn't represent our company true values," added Castiglioni.

Fenati, who also caused headlines in 2015 when he was penalised for kicking out at Finnish rider Niklas Ajo in a Moto3 warm-up in Argentina, had been due to join MV Agusta's new Moto2 project next season.

Moto2, previously the 250cc category, is a feeder series one rung below the main MotoGP class.

The MV Agusta project is in partnership with Forward Racing, whose rider Stefano Manzi was on the receiving end of Fenati's actions.

British rider Cal Crutchlow, who finished third in Sunday's MotoGP race, told reporters Fenati should have been banned for life.

"He should never compete on a motorcycle again," said the LCR Honda rider. "He should have walked back to the garage and his team should have just kicked him straight out the back.

"You can't do this to another motorcycle racer. We are risking our lives enough."

Reuters