Felipe Nasr has rubbished suggestions Sauber is actively sabotaging his progress at the tail end of 2016.

Wild rumours have suggested recent problems for the Brazilian might be because the Swiss team is trying to derail his and key sponsor Banco do Brasil's speculated switch to Force India.

What Nasr would admit is that his handling problems in Austin recently were "very strange".

"I think as a team we're working on answers," he told Brazil's UOL in Mexico.

"It was very strange what happened, this imbalance, and I said this to the team. But I think it's going too far to say it was something deliberate.

"There's no need to comment on that sort of thing," Nasr insisted. "I want to stay focused here this weekend and do my best in the last three races."

(GMM)