Lewis Hamilton moved within reach of a fourth Formula One world championship on Sunday after winning a Japanese Grand Prix that saw Ferrari title rival Sebastian Vettel retire with engine problems.
French Formula One driver Jules Bianchi has died of critical head injuries.
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Fernando Alonso on Thursday refused to categorically rule out leaving current team Ferrari as soon as next season for either former outfit McLaren or reigning champions Red Bull.
Britain's Lewis Hamilton won a wet and sombre Japanese Grand Prix on Sunday to extend his Formula One lead over Mercedes team mate Nico Rosberg to 10 points with four races remaining.
However intense the pain felt by Formula One after Jules Bianchi's horrific accident in Japan, and the shock is deep indeed, Friday's inaugural Russian Grand Prix practice offers some respite.
Australian Mark Webber led a Red Bull front row sweep on Saturday and denied team mate and Formula One championship leader Sebastian Vettel a fifth successive Japanese Grand Prix pole position in Suzuka.