Martin struggled to a season-worst 10th in the penultimate grand prix of the season due to an apparent tyre defect, which affected him from the off last Sunday.
With Francesco Bagnaia finishing second, it meant the reigning champion has taken a 21-point lead over Martin coming into this weekend’s finale in Valencia.
Martin was stinging in his criticism of Michelin in Qatar, saying “they stole” the championship from him due to the tyre problem.
Michelin is currently investigating the issue, but no answers have come yet from the French tyre manufacturer.
“No, not yet,” Martin said on Thursday in Valencia when asked if he’d had any word from Michelin as to what the problem was.
“For sure, it was a hard race. I struggled quite a lot straight away from the first lap. I don’t have yet any answers. These things need time to analyse.
“Maybe I spoke a bit too much after the race because I’m a really impulsive person. We don’t know exactly what happened, but maybe in one or two months we will understand.”
Martin says it was “easy to forget” what happened in Qatar and comes into the title decider “relaxed” now he “doesn’t have anything to lose”.
Source: Autosport