Mercedes Formula 1 driver Valtteri Bottas is set for a five-place grid penalty in this weekend's Japanese Grand Prix for an unauthorised gearbox change.
Bottas, who was fifth-fastest in Friday's only dry session at Suzuka, is in breach of the rule that states gearboxes must last for six consecutive races, unless they failed to finish the previous race.
He had previously taken a five-place grid penalty for changing a gearbox at July's Silverstone race.
The penalty comes as another blow to Bottas after a run of difficult races in which he has dropped to 59 points behind team-mate Lewis Hamilton in the championship.
Hamilton lapped over a second quicker than Bottas in first practice at Suzuka, beaten only by Sebastian Vettel's Ferrari, before going on to top a washed-out second session in which Bottas did not set a time.