The Suzuki rider broke his wrist after LCR Honda’s Nakagami crashed at Turn 1 on the first lap and knocked down Ducati’s Francesco Bagnaia and Rins.
Rins was tossed through the air and landed heavily, while Nakagami will remain in the night after hitting Bagnaia’s rear wheel with his face.
It is the second collision in a row between Rins and Nakagami, who was called “one of the most dangerous riders” by the Suzuki man after a clash at Mugello a week ago.
No penalty was imposed on Nakagami on this occasion, while the stewards treated Catalunya’s shunt as a racing incident and took no further action.
This infuriated Rins, who demanded that the panel of stewards be changed.
“Well, honestly, first of all I hope Taka is okay because I saw him in the hospital with his face [looking] very bad,” Rins began.
“But, he can’t go like that, he can’t ride like that. You never want a rival to get hurt, but he was over the limit in this action.
“That’s the first thing I want to say. But the second is that it’s unacceptable.
“I mean we can’t go like this, the race direction, the stewards have no sense in what they said saying ‘no further action’ will happen during the race.
“For me, I already told Freddie [Spencer] when I was at Mugello, which in my opinion they should sanction with the same penalty [Moto3 racer Deniz] Oncu received last year [a race ban].
“But it’s crazy, but for sure today they showed today on TV that the stewards are not at the level of MotoGP.
“In the end, his bike hit me and I flew so badly. I think my left wrist is broken.
“I will now go to Dexeus Hospital to check. But it looks bad ’cause I can’t move it more than that [a little].
“So I’m so sad about the decision they’re making. We had incredible pace today, but…”
Accident for Alex Rins, Team Suzuki MotoGP
Photo by: Gold and Goose/Motorsport Images
Rins added: “Of course I’m injured now, ok we’re running at 350 km/h, it’s not a game.
“Like I said, they’re not up to par. That’s all I can say, they showed it today.
“No other action, first Taka crossed the track a bit aggressively. If there were runners close to him, he would definitely touch them. The second is that he braked so late and lost the front, that’s obvious.
“In this safety commission, I showed all the riders and Mike Webb, the race director, the action that took place in Mugello.
“Some riders were saying ‘yes, it’s Taka’s fault’, and some are saying ‘it was Rins’ fault’.
“But then everyone started talking about the stewards. They sure don’t do their job well, that’s obvious. It’s obvious.”
Rins says he will pressure MotoGP to change its stewards, while calling two-time 500cc world champion Freddie Spencer – who leads the steward panel – “too old” for the job.
“For sure I will put the pressure to do it,” he added.
“Forgetting the Mugello incident, today I am injured, a rider took away my chances of fighting for the championship – but also for Pecco.
“Pecco was there to fight for the championship too, and I think more this year.
“All three guys are here [in the stewards panel], they are not doing their job well. It’s clear.
“He [Spencer] demonstrated that he is too old to be there. Some young people [should have the role]I don’t know, people who raced in the new era, someone who’s already retired.
Suzuki boss Livio Suppo echoed his rider’s comments, calling the decision to label the accident a “racing incident” “unacceptable”.
“We sent a protest to the stewards,” Suppo said.
“They checked the incident, for them it was a racing incident. For me it’s not acceptable to consider something like this a racing accident.
“I think Alex and Pecco deserve to know the extent of the mistake he made, it was clearly a mistake.
“It is very easy to check the position of the driver’s data, how many meters after the usual braking point he has done.
“On top of that, he completely crossed from left to right. If you talk to Pol… On TV it looked like he was very close to Pol [Espargaro].
“I think [if] the race direction thinks something like this is a normal accident, we have to think about it. For us, this is not acceptable. A mistake can happen, but it was really big.
Additional reporting by German Garcia Casanova