Valtteri Bottas is developing a bad habit of qualifying more than half a second behind Hamilton.
A suspected turbo problem has further dented Vettel's title chances at the Malaysian Grand Prix.
Romain Grosjean was unscathed after his dramatic tyre failure during practice in Malaysia.
Pierre Gasly is making his dream debut in Formula One at the Malaysian Grand Prix.
Neither Lewis Hamilton nor Valtteri Bottas could agree on how best to improve the car in Malaysia.
Sebastian Vettel is determined to bounce back from his Singapore disaster in mixed Malaysian conditions.
A win for Lewis Hamilton in Malaysia could have him put one hand on the drivers championship trophy.
Vettel's championship deficit to Hamilton exploded from three points to 28 after crashing on the first lap in Singapore.
Lewis Hamilton leads Sebastian Vettel by 28 points in the drivers standings.
Sebastian Vettel blitzed qualifying to start from pole, while Lewis Hamilton will start from fifth.
Ferrari was concerningly off the pace in practice despite prediction the Singapore circuit would suit the car.
McLaren is risking big for success by making a switch from Honda to Renault for 2018.
Ferrari president Sergio Marchionne has slammed his team's performance at its home race in Italy.
Mercedes can no longer be considered the fastest car by default despite winning in Belgium.
The 2017 Formula One is balanced on a knife edge with just 90 days remaining.
Robert Kubica's solid performance at an in-season test has put him on the cusp of an unlikely comeback.
The Hungarian Grand Prix instructively set the scene for the closing half of the season.
Ferrari scored a one-two finish despite heavy pressure from Lewis Hamilton.