Valentino Rossi has said that he fears his feud with Marc Marquez will continue into the 2016 campaign.
The pair have been locked in an intense battle since Rossi accused Marquez of helping Jorge Lorenzo win the World Championship by slowing Rossi down at Phillip Island.
Rossi was then penalised following the Malaysian GP where he was adjudged to have forced Marquez off his bike, with the Italian then asserting that Marquez had acted as Lorenzo's 'bodyguard' during Sunday's season-ending race in Valencia where Lorenzo secured the title.
Amidst Rossi's continued assertions that Marquez helped Lorenzo win the title, the 36-year-old has said that while he does not have a problem continuing to line up alongside Lorenzo at the Movistar Yamaha team, he is concerned that Marquez will continue to look to hinder him.
"I have a lot of passion for what I do and I won't change my future plans because of what happened. I will continue to do my job," Rossi said.
"I don't see being team-mates [with Lorenzo] next year will be a big problem.
"But I'm quite afraid of what will happen next year because with a rider like Marquez, who decides to not win a race just to cause harm to someone else, I don't know where it will end."
Rossi revealed that he met with MotoGP chiefs last Thursday to voice his concerns that Marquez would aid Lorenzo's title charge, but that his pleas fell on deaf ears.
"On Thursday I had the opportunity to meet with the bosses of the championship, and I had already said what would happen three days in advance," he said.
"They told me it was impossible, and yet it happened exactly like that."
Despite the animosity between Rossi and Marquez, the nine-time World Champion believes that Marquez is the future of MotoGP – but it's a future that is currently of concern to Rossi.
"Marquez is the future of MotoGP," Rossi said. "He's a great talent, he's 22-years-old and has many years left in his career.
"But all weekend he told lies, saying he will do everything to beat Lorenzo because it is important for Honda, then doing the opposite in the race.
"I think it's a real kick in the balls for everyone."
He added: "We have always been proud of MotoGP, because when we take to the track we always give everything.
"Starting [on Sunday], something has changed."