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 »

A strategic engine change for Valtteri Bottas will see the Finn start the Russian Grand Prix just ahead of Max Verstappen. read more »

Valtteri Bottas is set to drop to 17th on the grid after taking on fresh Mercedes power unit components for Formula 1's Russian Grand Prix. Bottas qualified in seventh... read more »

Valtteri Bottas is set to start from towards the back of the Russian Grand Prix grid after Mercedes elected to change his Formula 1 power unit overnight. read more »

After much speculation about Lewis Hamilton, Mercedes have introduce a new engine at Sochi but for Valtteri Bottas' car. read more »

Valtteri Bottas believes he and Lewis Hamilton can still inflict heavy damage on Red Bull in the fight for this year's F1 constructors' title following a missed... read more »

The Briton made the most of a switch to slick tyres in Q3 at Sochi to grab third spot on the grid for tomorrow's race behind Lando Norris and Carlos Sainz.And, while he is... read more »

Norris will be joined on the front row at Sochi by Carlos Sainz Jr, with George Russell third for Williams and the Mercedes drivers fourth and seventh, with Hamilton ahead of... read more »

Daniel Ricciardo has told Valtteri Bottas to keep talking up his move to Alfa Romeo but maintain "some realism". read more »

The 22-year-old Chinese driver is understood to be favourite to become Valtteri Bottas's team-mate at Alfa in 2022, with a decision set to be made in the next few... read more »

Mercedes dominated the opening day at the Russian Grand Prix with Bottas topping both FP1 and FP2 with Hamilton in second keeping close. read more »

Valtteri Bottas has warned that there's 'more to come' as he dominated Friday practice for Formula 1's Russian Grand Prix. read more »

Valtteri Bottas has warned there is "more to come" from him this weekend despite the blistering pace set by Mercedes during Friday practice for the Russian Grand Prix. read more »