Valtteri Bottas may be onto his fifth engine but that doesn't mean Lewis Hamilton has to take a fourth, says Honda's Toyoharu Tanabe. read more »

Lewis Hamilton has expanded on why Valtteri Bottas has been his best team-mate in Formula 1 - it is all down to communication. read more »

The Mercedes Formula 1 team has provided an explanation for why Valtteri Bottas was unable to replicate his charge through the field at Monza in last Sunday's Russian... read more »

Andy Shovlin has blamed tyre wear and understeer for Valtteri Bottas' inability to follow Max Verstappen through the field in Sochi. read more »

Christian Horner has all but thanked Valtteri Bottas for not holding up Max Verstappen in Russia, saying the Finn was "very fair". read more »

1996 Formula 1 world champion Damon Hill has criticised Valtteri Bottas' for 'gifting' position to Max Verstappen during the Russian Grand Prix. read more »

Mercedes technical director Mike Elliott has explained the difficulties faced by Valtteri Bottas on his way to P5 in the Russian Grand Prix. read more »

Gerhard Berger thinks Max Verstappen got into Valtteri Bottas' head before the Russian Grand Prix - to ease his passage through the field. read more »

The Canadian had a power unit change prior to qualifying after suffering an issue on Friday, and thus started 18th, just ahead of the also-penalised Valtteri Bottas and Max... read more »

Mercedes trackside engineering director Andrew Shovlin has highlighted a couple of areas that contributed to Valtteri Bottas' downfall in Russia until late rain saved his... read more »

1996 Formula 1 world champion Damon Hill has criticised Valtteri Bottas' defence on Max Verstappen at the Russian Grand Prix last Sunday. Verstappen started from the back... read more »

While Mercedes hopes to get through the rest of the season without needing a fresh power unit for championship leader Lewis Hamilton, there are growing concerns that it may... read more »

Mercedes says it has "question marks" over its Formula 1 power units in the wake of moving Valtteri Bottas onto a fifth engine at the Russian Grand Prix. Bottas... read more »

Mercedes is to carry out "further investigation" on Valtteri Bottas' power unit after a problem materialised during the Russian Grand Prix weekend that resulted... read more »

Waving the white flag in Sochi, PlanetF1 asks is it time for Mercedes to put George Russell in the car and say farewell to Valtteri Bottas now. read more »

As Valtteri Bottas moved onto his fifth PU in Russia, Toto Wolff says there are "question marks" over Mercedes' engine. read more »

Valtteri Bottas has denied taking a new engine in Russia to hold up Max Verstappen, saying it "had" to be done as his Monza PU was "gone". read more »

Valtteri Bottas says the rain that struck Sochi Autodrom "saved my race" having struggled to recover from the rear of the field. Bottas took on fresh power unit... read more »

Valtteri Bottas has revealed his Russian Grand Prix was "saved" by the late rain that caused chaos and shook up the order. read more »

1996 World Champion Damon Hill could not understand Valtteri Bottas' lack of defence against Max Verstappen in Russia. read more »

Weather Gods turn Russian Grand Prix upside down as Lady Luck smiles on Lewis, Max and Valtteri while shunning Lando. read more »

Mercedes driver Valtteri Bottas will start today's Russian Grand Prix from P17 after the Anglo-German team changed some power unit elements overnight. read more »

Red Bull revealed on Friday afternoon that it had fitted Verstappen's car with an all-new power unit, triggering a penalty that meant the Dutchman would start at the back... read more »

Mercedes driver Valtteri Bottas will start the Russian Grand Prix from 17th place after a new engine was fitted to his car resulting in a grid penalty. read more »

Mercedes has confirmed Valtteri Bottas will take his fifth new power unit of the season for the Russian Grand Prix. read more »