MotoGP title rivals Marc Marquez and Jorge Lorenzo gave away little about their tyre preference for Sunday's season finale.

The pair are separated by 13 points and will start at the front of the field in championship order, with Repsol Honda rookie Marquez on pole and Yamaha's reigning double champion Lorenzo in second place.

However rear tyre choice could prove especially crucial. Bridgestone's new hard compound tyre is making its grand prix debut this weekend and - unlike its predecessor - is proving a serious alternative to the softer option.

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Lorenzo, forced to qualify on his spare bike after a technical issue, had been especially impressive on the hard tyre in final practice.

"It looks like the first race where you can be fast and constant on both tyres," said Marquez. "It will be interesting. It looks like Lorenzo will go with the hard, but still I don't know what I will choose. I feel quite good with both. After warm-up I will check."

"It seems like for us the hard one could be a good option, but still we haven't decided," insisted Lorenzo. "In the warm-up we will try the soft one then decide."

As more evasive answers followed, smiling Moto2 champion Pol Espargaro couldn't resist jumping in: "They don't want to tell you what tyre they will use!"

Marquez continued: "Like Pol says, I will not say which tyre I will chose, because I feel good with both tyres: FP4 with the hard and FP3 with the soft. With both tyres I was fast."

Asked if the soft tyre could last the full 30 laps, Lorenzo dropped a hint - or maybe a red herring - as to his intentions: "Maybe I would like it if the soft tyre can't finish the race distance..."