Felipe Massa has revealed he suspects Fernando Alonso of knowing about the deliberate crash plot at the 2008 Singapore Grand Prix - but has vowed not to let it affect his future relationship with the Spaniard.
Speaking to Brazilian media ahead of this weekend's grand prix, Massa said Alonso had to have been aware of the plans for Nelson Piquet to crash deliberately in the Singapore event last year to try and help him win.
"In all, he is the least of the problem," Massa said. "It was the team and Nelson - but Alonso was part of the problem. He knew. We can not know it [but] of course he knew. [It's an] absolute certainty."
Alonso was cleared by the FIA investigation into the scandal of knowing about the race-fix plans.
Since making the comments, Massa and Ferrari have moved to clarify the remarks.
In a statement Massa said that his comments relate to a feeling he has rather than being based on facts, and added that he respects the FIA's findings from its investigations.
"What I've said is the outcome of a hunch I've had and is not based on any concrete evidence," Massa said. "The FIA World Council announced that there was no indication that Fernando may have been informed of what had happened and I respect this outcome.
"Obviously I'm very disappointed about what transpired last year in Singapore: I have already said several times what I thought about it and now it's time to close that chapter and to look to the future.
"What is certain is that this episode will not mar in any way the relationship I'll have with Fernando when we will be team-mates."